Add unit tests for group invitation client

Part of #766

See merge request !429

Fix Contacts Item always beeing selected if Back is pressed in the NavMenu

Signed-off-by: goapunk <noobie@goapunks.net>

Closes #782

See merge request !438

Signed-off-by: goapunk <noobie@goapunks.net>

Select the correct MenuItem when Back is pressed in NawDrawer

Signed-off-by: goapunk <noobie@goapunks.net>

Closes #782

See merge request !437

Bring back the toolbar shadow

![device-2016-11-21-180111](/uploads/7cd5e6a1e7a4b79b6d7cf81377b148a0/device-2016-11-21-180111.png)

Closes #477

See merge request !431

Signed-off-by: goapunk <noobie@goapunks.net>

Make navigation drawer scrollable

![device-2016-11-22-095642](/uploads/bcd5f68d40816ed2e44c3194eb977695/device-2016-11-22-095642.png)![device-2016-11-22-095658](/uploads/da1807e981632936ba04db24dc7b8ae7/device-2016-11-22-095658.png)

Closes #666

See merge request !432

Make dialog actions consistent

Closes #504

See merge request !430

Use uuid created from the commitment/payload instead of the uuid returned from getUuid()

Signed-off-by: goapunk <noobie@goapunks.net>

Closes #774

See merge request !435

Signed-off-by: goapunk <noobie@goapunks.net>

Remove injected field from unit test

Getting this off my todo list...

Closes #747

See merge request !428

Make original author look like commenter when reblogged

This wasn't as simple as changing the persona in the XML,
because the same layout is used for a post whether reblogged or not.
So the persona needs to be changed programmatically for reblogged posts.
For this, the `AuthorView#setPersona()` method has been made public and
was changed to always set all views into the desired state to support
usage in a RecyclerView.

![device-2016-11-21-094221](/uploads/e508937ad2d2d84f97f5be29bdeaac2e/device-2016-11-21-094221.png)

Closes #639

See merge request !426

Fix KeyAgreement after regression

Closes #768

See merge request !427

This wasn't as simple as changing the persona in the XML,
because the same layout is used for a post whether reblogged or not.
So the persona needs to be changed programmatically for reblogged posts.
For this, the `AuthorView#setPersona()` method has been made public and
was changed to always set all views into the desired state to support
usage in a RecyclerView.

make TextInputView resizable again

* TextInputView can resize up to 3 lines again

Signed-off-by: goapunk <noobie@goapunks.net>

Closes #762

See merge request !425

* TextInputView can resize up to 3 lines again

Signed-off-by: goapunk <noobie@goapunks.net>

Remove old signature class from API

I decided not to remove the SignatureImpl class, as it's not a trivial wrapper around the Bouncy Castle class, but I moved the interface into briar-core and made it  package-private.

Closes #763

See merge request !424

Introduce a @Scheduler annotation

and make sure work is offloaded to an executor, so exceptions can be caught.

Closes #524

See merge request !422

Remove Device ID

Closes #757

See merge request !423

Require a label for signing

This adds a sign() and a verify() method to the CryptoComponent
that take a mandatory label argument to ensure that signatures can't be
repurposed.

Closes #549

See merge request !419

Add visibility information to group member list

![device-2016-11-17-120740](/uploads/f16dd42c3637e0030722559bace9c391/device-2016-11-17-120740.png)![device-2016-11-17-121008](/uploads/a83fe1f27cd3a505cf45a94fec76cdcf/device-2016-11-17-121008.png)

Closes #754

See merge request !418

use SHOW_IMPLICIT when showing the softkeyboard, otherwise it won't auto hide

* remove the forced hiding in ThreadListActivity as it should no longer be required

Signed-off-by: goapunk <noobie@goapunks.net>

Closes #761

See merge request !421

Activity module refactor

Broke the Activity module into numerous modules to be able to make numerous controller's package visible

Closes #752

See merge request !417

This adds a sign() and a verify() method to the CryptoComponent
that take a mandatory label argument to ensure that signatures can't be
repurposed.

* remove the forced hiding in ThreadListActivity as it should no longer be required

Signed-off-by: goapunk <noobie@goapunks.net>