Update GMOSPrepare to use prepare.prepare rather than individual functions
Day arc class initial commit
Merge pull request #34 from mhvk/gmos/GMOSPrepare-update

Update GMOSPrepare to use prepare.prepare rather than individual functions
Merge pull request #35 from mhvk/gmos/dayarc-classes

Gmos/dayarc classes
use bit-wise operators instead of logical_and, logical_or
Merge pull request #36 from mhvk/gmos/dayarc-classes

use bit-wise operators instead of logical_and, logical_or
wavecal changes
massive cleanup
changed to prepare_frame.
cleaned up the general preparation of fits files
skipping preparation if prepared _fits exists already.
added sensible defaults for the prepare function
first trial of extraction
first trial of extraction
Merge branch 'development' of github.com:geminiutil/geminiutil into gmos/reduction

Conflicts:
	geminiutil/gmos/basic/extraction.py
changed to science_sets
added get_science_slice and moved extraction
get_readnoises added
added default_trace_position to slice object
Extraction using more pre-defined values