Clarify use of methods in PgpKeyHelper
PgpSignEncrypt comment
More changes to PgpSignEncrypt
Update license header for 2014
Remove unused blob classes and other dead code
Handle new exceptions in KeychainIntentService
Implement SIGNATURE_SUCCESS_CERTIFIED in PgpDecryptVerify (not tested)
Rework verifyCleartextSignature
key edit: fix crash when create date was after expiry date, change from gregorian calendar to calendar with creation from instance, experimental result status for decrypt activity
Fix SIGNATURE_SUCCESS_CERTIFIED
Translations from transifex
add debug backup/restore options to main menu

Closes #543
move old apg.db to apg_old.db (half measure~)