Update setup.py for setuptools with distribute fallback, add reqs and info to install deps
Merge pull request #2 from wrobstory/PR_deps

Update setup.py and reqs
allow local D3; make texts pan & zoom
adjust line dash styles
add test plots
add handling of patches
DOC: document high-level functions
more docs and cleanup
remove requirements.txt: causing problems and pip sucks for installing most of them
clean up object layer
automatically generate unique element ids
more cleanup: allow fig html alone
WIP: Add basic support for imshow.
WIP: Responds to zoom (but not correctly).
WIP: Images pan (translate) correctly; also rebased on master.