All text that can be generated by users will show emoji from the
shipped sprites.
For all messages and posts, the custom emoji keyboard is now available.
This also disables menu actions rather than hiding them and thus
closes#677
Included is a fix for a regression that was not showing the keyboard
automatically in forums and thus
closes#676
properly notify the view adapter of dataset changes
in order to avoid invalidating the entire dataset when not absolutely necessary.
This change also shows unread messages in a different color,
so users do not fail to notice delayed messages.
It now uses conversation bubbles in alternating colors
and vector drawables to indicate message state.
The conversation bubbles have been taken from Telegram
and can be replaced by a UX designer later.
This commit also addresses #9, because message text can
now be selected and copied. This is done by using
android:textIsSelectable="true"
which only works for API level 11 or higher.
If we want copy and paste on lower API levels,
additional measures have to be implemented.
