FileSequence and Bytes abstractions
Muck with the input to make it a file to send into odt2cnxml.transform. Make sure the passed in output is a sequence and that we know where to put the cnxml.
Fixes lookup logic in the MutableSequence abstraction methods.
Provides a named String buffer, which will aid the back and forth motion of buffer io to file io. Adjusts the output assignment and population logic of odt_to_cnxml.
Can't seek on stdin
Require the output type to be a FileSequence object. This may change later, but for now it is important because otherwise there would be a TypeError raised in the following statements.
Merge pull request #1 from Connexions/file-sequence

File sequence & ODT -> CNXML
I like this abstraction