0.1.7:
- Changed option to --clean-all (resolves issue #7)
- Updated the notebook style (added \Tr, fixed output overflow issue)
- Added pip option mmf_setup[nbextensions]
- Removed 'EnableNBExtensionApp' dependence which broke new Jupyter (resolves
  issue #12)
- Added some files for initializing setup on Sage Mathcloud (SMC) (resolves
  issue #14).
  - Added mmf_initial_setup script and some init files (.inputrc, .hgrc,
    .bash_aliases).
  - Run with `mmf_setup smc`
- Removed old extension manager since nbextensions are quite good now.
  
0.1.6:
- Added cupdate command (resolves issue #4)
- Fixed bug with ccommit where it did not accept a list of files
  (issue #6)
- Issue commands in a context to provide a robust mechanism for
  recovery (issue #5)
