get rid of AppMsg library
use SuperToast instead of AppMsg in code, part 1
use SuperToast instead of AppMsg in code, part 2
Merge branch 'master' into ditch-appmsg

Conflicts:
	OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyActivityOld.java
	OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListActivity.java
some more work on supertoast and result parcel stuff
introduce EditKeyResult with transient UncachedKeyRing (half-baked!)
watch out for nullpointers from get(Un|)HashedSubpackets

fixes #721
Merge branch 'ditch-appmsg'

Conflicts:
	OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java
	OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyMainFragment.java
	OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java
fix a couple remaining AppMsgs