Support sequence types as form data
Add Message(s) resource
Update to current layout of media resources
Do media resources the right way. Thanks, subresource. Thubresource.
Add support for new Message/Media/Body in twiml generator
full message/media support!
Merge branch 'master' into mms-support
Merge branch 'transciption-delete-fix' into mms-support
revert to % because python 2.5
change params to MultiDict so we can do multiple POST params with the same key
Address kevin's comments:

Remove Images
Add tests for multidict parameters
Add tests for __call__ method
don't need a multidict to do multiple POST parameters with the same key
change messaging doc
remote dangling import
Document a whole bunch of functions
add 'make docs-install' command
move more docs inline into the code
fix more docstrings'
Add sip-in support.
Move SIP resources into their own directory