Merge pull request #118 from chapmanb/master

Small fixes for keeping chunk loading in temporary directory and silencing bottle warnings
move to version 0.2.1b
Update requirements.txt
added basic notes to docs
logo tweak
update README
Added .gitignore.
Merge pull request #121 from roryk/master

Added .gitignore.
Chunked annotating to make it faster.

This could use more speedups; it takes 10-15 hours or so for
adding a small file.
Merge pull request #123 from roryk/master

Slightly faster annotations