Fix: allow plugin to load on Xcode5 DP3
Merge pull request #7 from idoru/xcode5-dp3-fix

Fix: allow plugin to load on Xcode5 DP3
Xcode5 DP3 Fix: lastActiveWorkspaceWindow is gone

- Obtain controller directly via lastActiveWorkspaceWindowController
Merge pull request #8 from idoru/xcode5-dp3-fix-2

Xcode5 DP3 Fix: lastActiveWorkspaceWindow method no longer exists
Merge https://github.com/cppforlife/CedarShortcuts