Merge pull request #84 from rudigens/master

Pull latest changes
Merge pull request #86 from rudigens/master

Pull latest changes
Preliminary check in of the new fftMatchProj tool. Determines the offsets between two images using FFT matches on a grid and adjusts those for map projection information.
Merge branch 'rtc' of https://github.com/rudigens/ASF_MapReady into rtc

Conflicts:
	src/libasf_raster/asf_raster.h
Adjusted the FFT size depending on expected offsets determined from map projection information.
Merge pull request #87 from rudigens/rtc

Implemented fftMatchProj tool for stack QC.