adding tomcat installation
pep8 compiliance, docs, tomcat6 support
Merge branch 'tomcat'
Applying patches mentioned in here: https://github.com/ronnix/fabtools/pull/170#issuecomment-27638007
PEP8 cleanup for tomcat module
Switching some path concatenation to os.path.join
Fixing version typo
Adding overwrite flag for installation and configuration with backup.
Default behavior is to raise exception iff install detected.
Fixing up tests for version for tomcat module
Added a deploy_application method to upload WAR file to webapps path
Modules for Gentoo
Gentoo support for fabtools.system
Fix for fully qualified version checks/installs
hints implemented, pep8 compliance
typo fix
s/gentoo/portage/

--HG--
rename : fabtools/gentoo.py => fabtools/portage.py
rename : fabtools/require/gentoo.py => fabtools/require/portage.py
Docs and imports
Return correct family for Gentoo
Mercurial support.
Merge upstream