Merge pull request #128 from derektamsen/master

adding ability to set custom app module load path for gunicorn
Release 1.7.11
Update README.md
Update README.md
Better for Apache License year :)
Update LICENSE
Added python::params & fixed $valid_versions def
Merge pull request #130 from gregsaram/pythonParamsClass

Added python::params & fixed $valid_versions def
Release 1.7.12
Update README.md
Return 'absent' instead of nil
Merge pull request #131 from eshamow/fix_virtualenv_version

Return 'absent' instead of nil
code highlight for version number :)