Added methods to RobotEye.java.
Added methods to RobotEye.java.

Added blurring, implemented circle and line detection.
Line detection works well; circle detection only works on
occasion.  It will require more tinkering with parameters
and integration with color.

maslab-team/maslab-2014-team17,maslab-team/maslab-2014-team17,maslab-team/maslab-2014-team17