Set Y and Z for real table

Changed Y and Z to match real table parameters from 5 20 2014 CBlog
video. X unchanged because it's at a good position already according to
latest info (5 20 2014 Captain's Blog).
Change to transit offset

Bumped the transit offset a bit.
Fixing alignment

Measured -5/8" (-15.875 mm) difference between tower 2 and Jeff's T2 position.
Mastering compensation

Jeff's mastering is off by 1 degree in A5
Measured diskthickness

Measured disk thickness differed by 2mm from estimate
added start-up documentation