Moved all files into NBConvert1 directory.
Moved most of the NBConvert2 files out of the NBConvert1 directory.
Refactoring of entrypoint
Moved and renamed jinja template converter.
Refactoring for the rename of ConverterTemplate to Exporter.
Create exceptions file to house all of the convert specific exceptions.
Refactored 'exporter'
Lots of changes....
Removed uneccessary jinja_filters class.  Merged code into exporter class.
Additional refactoring in exporter class
Moved wrap code into Strings utility file.
Moved more code to Strings utilities file
Removed "profiles"...  Templates that are shipped with nbconvert by default should
have settings built into exporter.py class.  If the user wants to add a new template
and use profile setting with it, the "profile" (config file) should be specified
via the commandline when calling the exporter.
Transformer refactor
Split transformer code
Added spaces between comments.
Fixed class registration, Exporter instead of *Template*
Created filters namespace
Split exporter into base and latex.
Moved latex code into latex exporter
Moved all converter code into nbconvert subdirectory
Post code-review, extended refactor.
More clean-up. Nomenclature changes