Added extensive debug output for find_python and related methods.
Add -contrib- to install.txt
Merge pull request #67 from SirReal/patch-1

Merged, thank you.
Doc fix.
Missed an assignment.
Make pylint happy.
Added support for version requirements.
Changed version_cmd to version_args, it describes the purpose better.
Version may be output on stderr.
Added defaults for version_* attributes.
Added version requirement note in README template.
Misc. cleanup
Deal correctly with builtin linters, automatically get version if possible.
Added travis build config for linting purposes
Added .travis.yml config to template
Using max line length of 120
Checking all subdirs
Added travis build status image
Added build status image to README template.
When copying fixed syntaxes, don't remove an existing directory, and log more info about versions.