create the function UBL to calculate ubl from antenna location
calculate nBaseline
finished all the functions except for degenM,A,and B
all the functions are done
finished the compute_info() function in calibtation_omni.py
update the compute_info() in calibration_omni.py (change calibrator to self)
update the compute_info() so that it modifies self.info
add four functions to calibration_omni.py: toBaseline, UBL, pair2ublindex, and pair2reversed
delete useful_function.py
add function compare_info() to calibration_omni.py. Also added raise exceptions in get_XXX and compute_UBL to check for input types
Delete calibration_omni.pyc
Merge branch 'Eric'
merged Eric branch into master and attempted to incoorporate compute_redundantinfo(), but not successful. Currently test.py still passes succesffully, but not using compute_redundantinfo()