Restore chat textbox to old behavior.
This adds the textCapSentences and textAutoCorrect IMEs to the
chat text input box, restoring the functionality of said box
to what it was before the IME was changed to work around the
no-Send bug introduced by the switch to API 19.
Fix the message displayed on changing one's own nick.
If the nick associated with the entry is the same as the nick
being changed to, then the nick change message is for the current
user and should be displayed as such.
Merge pull request #162 from mamarley/autocorrectfix

Restore chat textbox to old behavior.
Merge pull request #163 from mamarley/nickchangefix

Fix the message displayed on changing one's own nick.