Modified to write to the first extension and create proper primary and first extension headers
Not sure what is different
Merge branch 'master' of github.com:abostroem/science_programs
Changed pix_num to be a numpy array rather than a list to fix bug which was causing code to crash when you tried to redefine the background regions
Merge branch 'master' of github.com:abostroem/science_programs

Conflicts:
	interactive_extraction.py
Trying to resolve conflicts with interactive_extraction.py
merged with remote version. Resolved conflicts