Adding an alphagram ivar to Word which is calculated and then stored in the keyed...

Adding an alphagram ivar to Word which is calculated and then stored in the keyed archive

* Dictionary/Dictionary.m: Create Word objects and archive them rather than NSStrings
* Dictionary/Dictionary.xcodeproj: Switch to C99 mode and include Word.m/h
* Scrabbalize.xcodeproj: Mysterious project updates?
* Source/Word.h: Adding alphagram ivar and getter
* Source/Word.m:
(-[dealloc]): New method
(-[initWithCoder:]): New method
(-[encodeWithCoder:]): New method
(-[alphagram]): New method
(-[createAlphagram]): New method
(-[description]): Include the alphagram in the description