Convert all stylesheets to SASS
Stretch all tables to full width
Fix basic tab not appearing on page load
Prevent regular employees from seeing 'Add Credit' and 'Approve/Reject' buttons
Add pundit for authorization
Prevent regular employees from granting leave credits
Add initial tests for authorization
Merge pull request #3 from terenceponce/styling

Styling cleanup
Merge pull request #4 from terenceponce/authorization

Authorization for leave credit granting