sncat.py: Removed unnecessary lines querying ra, dec in getting SN
params.
tmpcommit_changephiarray: Trying to change the bandmag calculations in snObject so that
the phiarray does not have to be setup for every SN object. Right now
not sure how to do this, but a first step is to be able to take a
phiarray optionally.
Changed method name bandmags to bandMags in accordance with PR
suggestion.
testsnObject.py: Not sure what the change is. Will remove, because the
    useful parts have been put into testSNIaFunctionality.py
snObject.py: No real change. Commented out parts are removed.
Added tests for snObject.py replacing the functionality of
testsnObject.py. One test, comparing the magnitudes obtained from
SNCosmo and LSST stacks after accounting for extinction in the MW fails.
This has thus been set to a return value for now.