Initial WIP for freesufer
Update packge with dev requirements

Tweak how travis runs tests
Add line to explicitly test with py3.3 in makefile
Fix py3k relative import error
Build out FS commands

Refactor py-version things into seam.utils
Update with new docs structure.
Test documentation build in travis
Build out freesurfer documentation
remove phony test file
Add tkmedit functions
Add tksurfer functions
Merge pull request #2 from VUIIS/freesurfer

Initial Freesufer functions
Merge branch 'master' into dti-qa
Refactor dti pipeline templating

If single image, can pass as string or one-item
list

Multiple images must be passed as list

Greatly simplified templating