Refactoring main vc

Massive cleaning of homebrewviewcontroller
- created datasource object for table
- created subclass of tableview and moved view stuff there
- created sidebar controller object (no need to create sidebar each time upload happens) and moved stuff there
- separated popover to new VC with XIB
- created constants for sidebar items
- removed accessor and moved logic to awakefronib

Added tap/untap operations back (they haven't been merged correctly)