Remove msysgit. Its %path% is messing up cygwin

Change-Id: Icb96191b6a809f8e0002e7d031aa4c2faa386556
Don't push or pull to/from 10.0.2.10

Simplify this script by not reading or storing stuff on readynas.

Change-Id: I6588cb23282c2e9a54943fa29094940bc2161d5f
Upgrade git to v1.9.3

Change-Id: Id750c7d5397736c9cada171f7a0113d1c48a23c3