Added Mac OS X 10.7 to the compatibiliity.md file.

compatibility.md

@@ -52,6 +52,33 @@ not yet in Ubuntu Utopic (14.10)
 ## Cocoa
 ### Mac OS X 10.7+
 
+- Foundation ([full details](https://developer.apple.com/library/mac/releasenotes/Foundation/RN-FoundationOlderNotes/#//apple_ref/doc/uid/TP40008080-TRANSLATED_CHAPTER_965-TRANSLATED_DEST_0))
+	- can use [ClassName class] == nil to test for feature existence at class level
+	- NSUserDefaults is now thread-safe and respects user IDs
+	- NSProcessInfo is now thread-safe
+	- NSProcessInfo has automatic termination; might want to watch for this
+	- NSLinguisticTrigger
+	- NSCalendar changes (important for date/time pickers)
+- AppKit ([full details](https://developer.apple.com/library/mac/releasenotes/AppKit/RN-AppKitOlderNotes/#X10_7Notes)
+	- Cocoa decides when to draw focus rings
+	- lots of resolution independence stuff
+	- window edge resize/live resize
+	- restorable state
+	- toolbar versioning
+	- better scroll wheel management
+	- multi-image dragging (TODO didn't GTK+ add this too)
+	- built-in full screen (TODO what was fullscreen like before?)
+	- NSTextFinder for a standard search for text bar
+	- NSPasteboard: no longer need to invoke -[NSPasteboard types]
+	- NSPasteboards use UTIs for type information
+	- NOTE FROM LEOPARD: full-width cells, source lists
+	- view-based NSTableViews and NSOutlineViews
+	- URLs returned may not be file:// anymore! TODO note in futureplans.md
+	- **NSPopover**
+	- vertical text support improved
+	- **placeholder text in NSTextField now shown when focused**
+	- NSTextView now has an optional formatting bar
+
 ### Mac OS X 10.8+
 
 ### Mac OS X 10.9+