turnToAbsolute() method added.
bluetooth constants added.
searchBlock2 added to limit angle the robot turns to

allows the robot to turn to absolute angle, helpful in search block
method
second searchBlock() method works
has the robot search to a limit angle
Changed second searchBlock() method to not turn for a fixed angle and to
rotate 360 degrees instead. 

This ensures it won't rotate the wrong direction and miss the blocks
Reverted to previous commit.

(not through egit because I don't know how to fastforward a commit)
reduced time delay time
changed bluetooth parameters
fixed starting coordinates
Improved localization constants
changed angles to Radians