- On CreateActivity, make the maximum number of characters for the title
to be 50.  Make the spinner appear beneath the category.
- On the joke stream, make sure the title ends at the time instead of
overrunning it.
- On the ActionBar, make the default profile icon show up instead of the
user's icon, since the user's icons are not recognizable as their icons,
so it is confusing.
- On LoginActivity, add a toast when Twitter login fails.
Merge branch 'master' of https://github.com/dbvictor/bananas