Fix Spaces.c not getting the Foundation import.
Remove dead/unused Snow Leopard code.
Remove dead pre-Lion code.
Remove custom scrollers.
Replace deprecated OpenSSL with CommonCrypto.

Replaces AES 256 encryption/decryption, MD5, and SHA1.
Replace homegrown HMAC-SHA1 and PDKDF2-SHA1 with CommonCrypto.
Remove decrepit Blor support.
Replace random data generator with CommonCrypto.
Move AES encryption to separate NSMutableData category.
Replace BSJSON with NSJSONSerialization.
Removes unused loose files, builds, and code in repo.
Replace deprecated NSFileManager methods.
Replace deprecated sheet, panel, sheet result path methods.
Replace use of -[NSWorkspace launchedApplications].
Replace note recovery dictionary with NSMapTable.