Added declination_shift to reading model
Added reviewed to observation model
Added reviewed to ObservationDetail model
Updated calls to Reading to include a declination_shift and calls to Observation to include reviewed
Updated call from ObservatoryFactory to Observation to include reviewed
Added declination_shift to defaults
Added reviewed to defaults for Observation.js
Added missing reviewed value to table in ObservationFactory
Added values for reviewed and delcination_shift to ObservationFactory test
Changed default of reviewed from null to 'N' in Observation
Changed defaults of valid flags to 'Y' and declination_shift to 0
Changed declination_shift from string to INT in ObservationFactory
Fixed database call to use correctly EastUp & WestUp instead of EastUpTime & WestUpTime, and added a 0 for declination_shift in the newly created readings
Merge pull request #57 from emcwhirter-usgs/GMP-304

Gmp 304
Added shift variable & equation to magneticDeclination in BaselineCalculator
Compensated for null declination shift in equation
Added declinationShift to magneticDeclination in ObservationBaselineCalculator
Added declination_shift from Reading to magneticDeclination call
Added tests for declination_shift to the magneticDelination in the BaselineCalculator
Replaced == comparison for shift