made some changes for debugging -- fastfit giving bad plots
some corrections
added lines from working pre unravelled branch
not working, abandoning and going back to pre un ravelled working py version
so far so good
still looks good -- pre pyx
getting rid of the masked array, include finding min RSS in main loop.  looks good
deleted some redundant lines
created setup.py
now to pyx version
changed 1/j to 1.0/j, was giving 0
made some changes, still not working
attempting to assign pointer to RSS aray -- not wowrking
Merge branch 'master' into working_pre_unravelling

* master:
  made some changes, still not working
  not working, abandoning and going back to pre un ravelled working py version
  added lines from working pre unravelled branch
  made some changes for debugging -- fastfit giving bad plots
  added pyx etc to Cython_Test
  cleaned up fastfit a bit
  included finding min RSS in loop
  unraveled slices and sums for RSS[j, k]
  unraveled slices and sums for b_3, a_3
  unraveled np.sums, and slices for a_2, b_2
  unraveled np.sums, and slices for a_1, b_1
  changed from 312 to 300