Merge branch 'master' into refactor
This command expects one argument
Moved #add_argument one inheritance level up
Added abstract #parse_argument method
Let LimitInCommand inherit from LimitCommand directly
Removed unneccessary functions
Moved #parse_date one inheritance level up
Simplified code
Merge pull request #59 from matthiasbeyer/refactor

LimitDayCommand and other Limit*Command shouldn't inherit from LimitInCommand, should they?