Iftach Sadeh / ctools

# Conflicts:
#	doc/source/users/tutorials/notebooks.rst

This allows setting the exclusion map without having to save the map first

Methods should not be duplicated in Python scripts but rather use optional parameters

# Conflicts:
#	ChangeLog
#	NEWS

…RegionMap instead of GSkyMap. Updated function documentation.

…RegionMap instead of GSkyMap. Updated function documentation.

…uerying user parameters (#2721)

…he source model to compute the ARF (#2292)