Remove obsolete documentation files and the GPLv3 license

- Deleted the GPLv3 license document as it is no longer needed.
- Removed the INSTALL file, which contained outdated installation instructions.
- Eliminated the LICENSE file that referenced GPLv2/GPLv3 and the MIT license for sortable.js.
- Cleared the README file that provided information about gitstats, including requirements and contribution guidelines.
- Removed the TODO.txt file that listed various feature requests and improvements.
- Deleted the gitstats.pod file, which contained usage documentation for the gitstats tool.

doc/AUTHOR

@@ -1,9 +0,0 @@
-Author can be reached by sending e-mail to <hoxu@users.sf.net>.
-Include "gitstats" in the subject or prepare to battle the spam filters.
-
-See the following command for list of authors who have contributed:
-  $ git shortlog HEAD
-
-Also thanks to the following people:
-Alexander Botero-Lowry
-

doc/GPLv2

@@ -1,339 +0,0 @@
-		    GNU GENERAL PUBLIC LICENSE
-		       Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-			    Preamble
-
-  The licenses for most software are designed to take away your
-freedom to share and change it.  By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users.  This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it.  (Some other Free Software Foundation software is covered by
-the GNU Lesser General Public License instead.)  You can apply it to
-your programs, too.
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-
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-Public License instead of this License.

doc/GPLv3

@@ -1,674 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
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-software and other kinds of works.
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-<http://www.gnu.org/philosophy/why-not-lgpl.html>.

doc/INSTALL

@@ -1,10 +0,0 @@
-gitstats does not currently need to be installed; it's used right from the
-directory (it also assumes some files like the stylesheet are in .)
-
-Suppose you have a git project at /mnt/src/git/project
-and you want to save the statistics to ~/public_html/project
-
-You would run:
-$ ./gitstats /mnt/src/git/project ~/public_html/project
-(go grab a cup of coffee if it's a large project :)
-$ sensible-browser ~/public_html/project/index.html

doc/LICENSE

@@ -1,4 +0,0 @@
-gitstats license is GPLv2/GPLv3, see doc/GPLv2 and doc/GPLv3 respectively.
-
-sortable.js, contained in gitstats, is licensed under the MIT license. See the
-file itself for details.

doc/README

@@ -1,22 +0,0 @@
-gitstats is a statistics generator for git repositories.  It is mostly intended
-for developers, as a way to check some development statistics for a project.
-
-Currently it produces only HTML output with tables and graphs.
-
-Requirements
-============
-- Python (>= 2.6.0)
-- Git (>= 1.5.2.4)
-- Gnuplot (>= 4.0.0)
-- a git repository (bare clone will work as well)
-
-The above versions are not absolute requirements; older versions may work also.
-
-Recommended
-===========
-- Lots of memory and fast disk for large projects
-
-Contributions
-=============
-Patches should be sent under "GPLv2 or later" license - this will allow
-upgrading to newer GPL versions if they are sensible.

doc/TODO.txt

@@ -1,77 +0,0 @@
-[]
-- cleanup: use defaultdict(int) for counting dicts instead of foo[x] = foo.get(x, 0) + 1
-	- not supported in python 2.4 - do any users use python 2.4?
-	- debian lenny (oldstable) has python 2.5
-- bug: multirepo tags
-	- self.tags contains tags from all repos - WRONG
-
-- general: analysis, ohloh-like?
-	- age: active days / days - high % means active project usually
-	- number of contributors (& their active days)
-
-- https://sourceforge.net/tracker/index.php?func=detail&aid=2865754&group_id=203965&atid=987714
-	- gitstats is a great tool, but the one thing that I miss is the number of
-	SLOC or comments on the "lines of code" image. Could this somehow be
-	added?
-
-[Unsorted]
-- clean up after running gnuplot (option to keep .dat files around?)
-- show raw data in some way (the tables used currently aren't very nice)
-- allow multiple stylesheets
-	- parameter --style
-	- styles/{default,...}.css
-- could show some statistics from last year, month, etc... pisg-like?
-- Commandline options
-	--debug / --verbose
-- save command line settings and use them next run if not overridden?
-
-[Stats]
-- General
-	- Total repository size (slooooow)?
-
-- Activity by Time?
-	- (G?) Last 30 days
-	- (G?) Last 12 months
-	- (T) Hour of Week: percentages / coloring?
-	- (G) Pace of Changes - number of line/other changes happening over time
-
-- Authors
-	- (T) List of authors
-		- Lines
-	- (T) Author of Month
-		- Lines
-	- (T) Author of Year
-		- Lines
-
-- Files
-	- Average revisions per file
-	- (G) Average file size: x = date, y = lines/file
-	- (T) Largest Files?
-	- (T) Files With Most Revisions?
-
-- Lines
-	- Average lines/file
-	- (G) Lines of Code: show tags as vertical lines?
-
-- Tags
-	- Lines
-
-- Author page for each author
-	- Name, mail
-	- Total commits (%)
-	- LOC (%)
-	- Last commit: date
-	- First commit: date
-	- Activity by Clock Time
-		- (G) Hour of Day
-		- (G) Day of Week
-	- (T) Activity in Directories: Directory, Changes, LOC, LOC/change
-	- (Most Recent Commits?)
-	- Author of Month(s):
-	- Author of Year(s):
-
-- Pages for years?
-	- Commits (% of all)
-	- Author top ten
-	- Month statistics
-

doc/gitstats.pod

@@ -1,115 +0,0 @@
-=encoding utf8
-
-=head1 NAME
-
-gitstats - git history statistics generator
-
-=head1 SYNOPSIS
-
-B<gitstats> [options] <repository dir> <output dir>
-
-=head1 DESCRIPTION
-
-B<gitstats> is a statistics generator for L<git(1)> repositories. It examines the repository and produces some interesting statistics from the history of it. Currently HTML is the only output format.
-
-=head1 OPTIONS
-
--c option=value
-
-Override a default configuration value. Defaults can be seen by running B<gitstats> without parameters.
-
-=head2 Values:
-
-=over
-
-=item authors_top
-
-How many top authors to show.
-
-=item commit_begin, commit_end
-
-Specify a commit range to generate statistics from. You can specify only commit_end limit statistics to a certain commit or another branch.
-
-=item linear_linestats
-
-When enabled, the lines of code statistics are collected from linear history.
-The downside is that commits of long feature branches appear only at the point
-where a merge commit is made.
-
-If disabled (old behaviour), the problem is that if two branches contain the
-same changes (for example, removal of same lines), the statistics get skewed.
-
-Defaults to on.
-
-=item max_authors
-
-How many authors to show in the list of authors.
-
-=item max_domains
-
-How many domains to show in domains by commits.
-
-=item max_ext_length
-
-Maximum file extension length.
-
-=item processes
-
-Number of concurrent processes to use when extracting git repository data.
-
-=item project_name
-
-Project name to show on the generated pages. Default is to use basename of the repository directory.
-
-=item start_date
-
-Specify a starting date to pass with --since to git.
-
-=item style
-
-CSS stylesheet to use.
-
-=back
-
-=head1 FAQ
-
-Q: How do I generate statistics of a non-master branch?
-
-A: Use C<-c commit_end=web> parameter.
-
-Q: I have files in my git repository that I would like to exclude from the statistics, how do I do that?
-
-A: At the moment the only way is to use L<git-filter-branch(1)> to create a temporary repository and generate the statistics from that.
-
-Q: How do I merge author information when the same author has made commits using different names or emails ?
-
-A: Use git .mailmap feature described in B<MAPPING AUTHORS> of L<git-shortlog(1)>.
-
-=head1 EXAMPLES
-
-=over
-
-=item Generates statistics from a git repository in C<foo> and outputs the result in a directory C<foo_stats>:
-
-  gitstats foo foo_stats
-
-=item As above, but only analyzes the last 10 commits:
-
-  gitstats -c commit_begin='HEAD~10' foo foo_stats
-
-=back
-
-=head1 AUTHORS
-
-B<gitstats> was written by Heikki Hokkanen and others.
-
-See the git repository at https://github.com/hoxu/gitstats for an up-to-date full list of contributors.
-
-=head1 WWW
-
-http://gitstats.sourceforge.net/
-
-=head1 SEE ALSO
-
-L<git(1)>
-