encode usernames in invite links
use existing string for error
bump version - 48
don't show gcm notification if message is not new
handle auto invite when onNewIntent
don't perform auto invite until connected and user and message state
processed
show toast when we can't get public keys
add check for null cipher data
update strings (en, de),  set message decryption error on error
check for null pre connect ids
allow restoring identity with different filename than contained user
fix background image localization
fix login on keyboard done RM#612
remove invite notification if invite rescinded
always alert on push notification
rename login activity to surespot
set whats new title to version 49
bump version 49
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