Backport from 4.8 release. Fix minor mistakes with build and test scripts.

2013-02-06  Jeremy Bennett <jeremy.bennett@embecosm.com>

	* build-all.sh, run-tests.sh: Correct handling of --jobs, --load
	and --single-thread.
	* build-uclibc.sh: Correct typo in gdbserver config.

Conflicts (resolved):
	build-uclibc.sh