Lowered the slope threshold for the odo correction.

Because it missed a lot of lines before. Should be better, but didn't
test.
Fix bug in localization's getFilteredDistance()

It was using the cs filter instead of the us filter. They are different
types, so it should have failed all the time?
Merge branch 'master' of https://github.com/mattgray7/DPMFinal

Conflicts:
	DPMFinal/src/Master/BTSendController.java