Merge pull request #5 from snakerock/master

+ Scaling moved to Fresnel + C++11
Merge pull request #6 from snakerock/master

* fresnel.h fixed
IntensityGraphWindow refactored & optimized
Refactored scaling elements + removed unused files
Fixed colors
Initial AmplitudePlateWindow (needs fixing)
Merge remote-tracking branch 'upstream/master'
+ Flat lens phase plate added;