Version 2.6.1

patchtools: bump version to 2.5

patchtools: tag as 2.4

patchtools: tag as v2.3

project: reorganize code

This commit renames the core package to 'patchtools' and lower cases the
individual module names as is more typical in python.

We also move the documentation to doc/ and the scripts to scripts/, which
simplifies setup.py.  patch.cfg is also not installed by default and is only
provided as an example since it is pretty useless otherwise.

In addition, exportpatch and fixpatch will now use sane defaults in the
absence of a config file.

documentation: update and embed version

We have git tags at 0.13 and setup.py version at 2.0.

Let's up the python one to 2.1 and sync with the tags.  Now we also
embed the version in the man pages.

documentation: add asciidoc format documentation

This commit adds documentation in asciidoc format for the commands
and config file format.

It's built into man pages using 'make'

PatchOps: handle v3+ kernels appropriately

Now that there is Linux v4.x, we need to extend the regex to
encompass that as well.  We'll just do anything with 2 base components.

Patch: extract full commit id from commit and use as Git-commit tag

Config: add another mainline repo

git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git is also
a canonical mainline Linux repository and should be used for comparison.