Make build script for SDK more consisteng with toolchain script.

	* build-epiphany-sdk.sh: Update fetching and building the
	toolchain, install toolchain in correct location rather than
	moving it, add copyright notice.
Merge branch '2014.08.rc' into jeremy-sdk-script-patch
Merge branch 'jeremy-sdk-script-patch' into 2014.08.rc
Merge branch '2014.08.rc' of https://github.com/adapteva/epiphany-sdk into 2014.08.rc
Merge branch '2014.08.rc' of https://github.com/adapteva/epiphany-sdk into 2014.08.rc
Merge branch '2014.08.rc' of https://github.com/adapteva/epiphany-sdk into 2014.08.rc
Changes epiphany build and install scripts to support the latest Epiphany toolchain build script.