Simplify encrypt and sign backend
Fix layouts
Language clarifications
More layout fixes
More layout fixes
language
Fix pre-selection for encrypt
Fix symmetric decryption
PgpKeyOperation: factor out all android dependencies

Conflicts:
	OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java
	OpenPGP-Keychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java
test: add junit+robolectric to buildfiles and stub test file