Recommend installing Git with official installer in Windows.

Many people are reporting issues with Git from Cygwin.
Install 'patch' instead of 'patchutils' in Cygwin.

Fixed #195.
Merge branch 'next' into iso
Supress another error when compiling for ARM.

Conflicts:
	src/platform/lpc17xx/lpc17xx.mk
Merge branch 'next' into iso

Conflicts:
	src/platform/lpc17xx/lpc17xx.mk
Bump obd2-c.