I realigned the entire CR1-4 setup

• ensured that beam out of the chamber are at 6" height everywhere. Moved some iris to center them
• ensured that the beam hits the 45 degrees in-vacuum mirrors at a height of 3.78" = 96 mm
• checked that all incoming beams are roughly centered on the 45 degrees in-vacuum mirrors. Move some of them in-vacuum mirror posts
• realigned the input steering mirros horizontally and the in-vacuum mirros so that the beams reflected from a water-level are not clippe anywhere
• realigned the horizontal reference to the center of all QPDs