Store only 4 ip addresses because 5 exceed the maximum length.

Closes #885

See merge request !510

Use a polite executor for validation tasks

Closes #675

See merge request !507

Add tapjacking protection

Closes #906

See merge request !502

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

* Set filterTouchesWhenObscured for all views
* Warn the user if Apps using the SYSTEM_ALERT_WINDOW permission are installed
* Warn the user if an App using the permission is installed while Briar is running

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

Remove Fortuna generator, fix Android SecureRandom bug

Closes #914

See merge request !500

Move HTML Sanitation to DbThread

Closes #928

See merge request !506

Fix possible intent hijacking for implicit pending intents

Closes #910

See merge request !499

Don't cast Context to BaseActivity

Closes #926

See merge request !505

These counters are already reset when the user clicks the notification
or vists the area of the app the notifications are for.

This also removes a potential intent hijacking vulnerability.

Prevent multiple instances of PasswordActivity

Closes #909

See merge request !504

Don't allow other apps to open the panic prefs activity

See merge request !503

Require a system permission to open the settings activity

See merge request !501

Fix ForumActivityTest

Closes #915

See merge request !496

Validate arguments to StreamEncrypter#writeFrame()

Closes #912

See merge request !497

Simpler password strength estimation

Closes #913

See merge request !495

Run configurations for tests

See merge request !498

Set TESTING from BuildConfig

Closes #905

See merge request !494

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

Sanitize all HTML before displaying it

Closes #911

See merge request !493

Require a panic app to be set before executing any panic actions

Closes #907

See merge request !492

Use ProcessBuilder instead of Runtime to start tor

See merge request !487