Began organizing SCSS documents to be a bit more organized
Removed BuddyPress specific stylings from myFOSSIL assets.
Updated Activity stylings to be specific to Activity entries
Implemented updated Activity user menu style and links
Simplified SCSS stylings for entry, announcements
Removed Activity filtering tabs that are no longer part of the interface
Updated Activity page to match new composition. Closes #74
Merge pull request #80 from myfossil/css/organize

Organized the SASS files, updated Activity to match composition