German Translation: SMS delivery notification

Changed the SMS delivery notification translation, so it doesn't imply that you have just received a message.
I also submitted this to the official Android gerrit, but it has not been verified until now. ( https://android-review.googlesource.com/#/c/61961/ )

Change-Id: I86a47b4689dad9e71da6ad7d90794da39c3834d7
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
Fix Null pointer expection when Phone is in low memory

ThumbnailManager tries to get the bitmap and throws null
pointer exception when cache is null.

Change-Id: Iba557e5d9aa6c0990ee47c79788c4c1c55121c63
CRs-Fixed: 539366
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
Fix the send button disappearance after selecting the forward recipient

During onRestart method the bottom panel is hidden for the
ComposeMessageActivity.

Change-Id: Ica243945237003a37d0832c556e45c5b43dd0497
CRs-Fixed: 568266
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>