Correct filterengine.cpp when going backwards through history.
Add ability to paste images and cleanup resources when removing from a note.
Add LaTeX support.
Add the beginnigs of basic encryption support.
Add basic PDF viewing support.
Messed with encryption a bit.  Replaced old libraries with Botan so they are easier to use.  Encryption is still not working properly, but it is closer.
Basic ink note support.  Still needs work, but basics are in place.
Add read-only note support.