Use the new launcher icon.

briar-android/src/main/AndroidManifest.xml

briar-android/src/main/res/drawable-hdpi/ic_launcher.png

briar-android/src/main/res/drawable-ldpi/ic_launcher.png

briar-android/src/main/res/drawable-mdpi/ic_launcher.png

briar-android/src/main/res/drawable-xhdpi/ic_launcher.png

briar-android/src/main/res/layout/author_view.xml

briar-android/src/main/res/layout/contact_avatar_status.xml

briar-android/src/main/res/layout/introduction_message.xml

briar-android/src/main/res/layout/list_item_contact.xml

...r-android/src/main/res/layout/list_item_contact_small.xml

...roid/src/main/res/layout/list_item_revealable_contact.xml

...roid/src/main/res/layout/list_item_selectable_contact.xml