Changes before merge
Fixed tests for base postgresql role
Rollback of debg change
A versioned role
Bugfixes
Merge remote-tracking branch 'remotes/origin/master'

Conflicts:
	provy/core/roles.py
	provy/more/base/database/postgresql.py
	provy/more/debian/package/aptitude.py
Fixed pep8 error for postgresql
Small bug in postgres tests.
Fixed pep8 in roles.py
Pep8 changes for sudo.py
Pep8 changes for alternatives.py
Removed author.
Removed error during merge.
Fix
pep8 changes fir java.py
pep8 changes fir java.py
Updated ssh role.
Bugfix
Working begin_provyfile2
New postgresql role and aptitude role fixes