(1) re-designed and debugged the orientation class and cleaned up quaternion code, and fixed issues in camera and main related to yaw and camera transforms (2) improved hand-holding algorithm
fixed merge
(1) added a few methods to orientation; (2) fixed Eve's height; (3) added pitch and roll members to Avatar (not used yet); added avatar pull from handshake;
fixed comment on Eve position
fixed some small formatting glitches in code and added a way to make head lean affect the position of the head
cleaned up some tabbing issues in main.cpp
Merge pull request #175 from Ventrella/master

fixed orientation issues and hand holding stuff