Added .gitignore and TODO.rst to the repo
Modified: snObject.py:
- Changed the function that sets up the mwebv values calculated from the
  angular coordinates (ra, dec) to use the photUtils function
  EBVbase.calculateEbv and take the zeroth value of the list
- Compared the values obtained from SNCosmo and EBVbase for a single
  value of ra, dec and they match extremely well