Added first draft fiducial finder.
Moved aspect system code to PYAS-core, separated camera functions into camera.cpp
matched filter code, cameraless test program
Halfway-working FITS files in compression.cpp, compression.hpp. Demos of saving in PNG.
Changes to the fullDemo program to make it work with AVT image stream
Merged fullDemo versions to include camera stream fixes and frame saving
Thread program runs
Imperx files added, install info in camerainstall.txt
Merge branch 'master' of https://github.com/akcramer/SAS into akcramer-master

Conflicts:
	PYAS-core/aspect/fullDemo.cpp
Added Imperx documentation
First cut at Imperx image stream class
Camera stream work in progress
Merge pull request #6 from akcramer/master

Snap
Merge branch 'master' of https://github.com/HEROES-GSFC/SAS
added packetDemo to PYAS-core, modified ImperxStream to grab temperature