V1.2 menu update

@homebysix, @futureimperfect, @jsenick 
Here are the changes for #223.

As you can see I created v1.2-beta3 which is now a clean merge with master. The other day I was one move away from getting it there, but I was too frazzled to see it. Go ahead and take down v1.2-beta2 when ever your ready.

This PR has some incidentals too, 
- I've added NSDistributedNotifications to connect the background runs to the main Application when it's open.
- It's also now set up to be configurable as a StatusMenu only, DockApp only, or both. you can set these with defaults. Any suggestions as to where they belong in the UI?
 ```
    defaults write com.lindegroup.AutoPkgr MenuBarOnly -bool True 

    defaults write com.lindegroup.AutoPkgr DockOnly -bool true
 ``` 

@homebysix, all of my xib changes are cleared out now, so it's ready for what ever changes you have on your wish list. 

One thing I would like is a "Search Github For Recipe" button, where we can do an actual `autopkgr search [recipe]`. Maybe on the "Recipe & Repos" tab.

--Eldon