add extended background estimation to the ihope pipeline
make lalapps_cbc_plotrates importable
add new files and utilities to pylal for extended background estimation
add plots for extended background estimation to ihope results page
Adds lalapps_cbc_plotrates to pylal/setup.py
In lal vars like lal.LAL_REARTH_SI had been renamed lal.REARTH_SI
so changed extended_background_utils.py to the new convention.