added some image processing stuff. Some memory management
sprint 3 end
Merge branch 'more_imgProcessing'

Conflicts:
	app/src/main/java/cis642/aphidcounter/MainActivity.java
	app/src/main/res/layout/activity_main.xml
	libraries/opencv/build/intermediates/bundles/release/classes.jar
	libraries/opencv/build/outputs/aar/opencv.aar