fix some missing recipient parcel bugs

// FREEBIE
Moved several hard-coded UI strings to strings.xml

Closes #2203
Use "singleTask" to ensure a single ConversationActivity instance.

1) Mark the Activity as singleTask.

2) Process onNewIntent for updates.

3) Propagate onNewIntent to the ConversationFragment.

Fixes #2232
Fixes #1532
Fixes #146
Fixes #851
Closes #2266
Support 'WiFi calling' devices.

// FREEBIE

Fixes #2254
Fixes #2240
Fixes #2160

Closes #2263
fix edit-group intent extras

// FREEBIE
Update to jobmanager 0.10.0

// FREEBIE
remove pointless Bitmap allocation for ImageSlides

Fixes #2248
// FREEBIE
Support for multi-select in the conversation list.

// FREEBIE

Closes #1601
Closes #2214

Fixes #2188
Fixes #786
merged  WhisperSystems/master