New latex document on Keck data reduction

* papers/keck/data-reduction.tex
Miscellaneous stuff that never got committed
Stuff from December 2012 on HST10
Merge branch 'master' of github.com:deprecated/proplyd-cloudy

# By Nahiely Flores
# Via Nahiely Flores
* 'master' of github.com:deprecated/proplyd-cloudy:
  Change to make an figure with the Tsamis line ratios
  New lines in the spetial dic
  Change the CaA to the H 1 or Ca B in the cloudy commands

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