Fixed nrating property definition for AppleScript.
Merge pull request #123 from dlh/applescript-rating-fix

Fixed nrating property definition for AppleScript
Improve the process of updating the UI after rating a song.

* The main playback view and History drawer could show different UI states for the thumbs up/down buttons when the playing song was selected in the History drawer and then rated.
* The spinner is now always displayed when rating a song. It was not previously displayed when rating from the History drawer.
* Calling "thumbs up/down" from AppleScript now updates the UI.
* Fixed a bug with [Pandora -deleteRating] ignoring thumbsDown feedback entries.
Tweak Makefile so that xctool can be used.
Fix state of thumbs up/down buttons in History drawer when no item is selected.
Merge pull request #125 from dlh/xctool

Tweak Makefile so that xctool can be used.
Merge pull request #124 from dlh/rating-ui

Improve the process of updating the UI after rating a song
Disable buttons when their action is not valid.

* In the History drawer, disable all buttons when no song is selected and disable rating buttons for shared stations.
* In the main playback view, disable rating buttons for shared stations.
Merge pull request #127 from dlh/buttons-state

Disable buttons when their action is not valid
Updating the CHANGELOG
Added missing license from git@github.com:nevyn/SPMediaKeyTap.git to SPMediaKeyTap/
Merge pull request #131 from winny-/master

Added missing license text to SPMediaKeyTap
Try to reconcile the assertions in #129 and #130
v1.1.15
Tweaking Makefile and key locations
Correct the archive script
Try avoiding callback spaghetti

Tentatively closing #112
Don't always retry every request for forever
Ignore temporary errors from last.fm

Closes #136
Fix various issues with callbacks and retries

* Track the source of callback spaghetti
* Don't always retry requests
* Appropriately log back in after time