Create tagging script and adjust other scripts accordingly.

	* build-epiphany-sdk.sh: Remove use of --release for
	download-toolchain.sh and build-toolchain.sh.
	* build-toolchain.sh: Remove --release.
	* define-release.sh: Remove RELEASE_TAG.
	* download-toolchain.sh: Remove --release
	* get-versions.sh: Remove --release.
	* tag-release.sh: Created.
Merge branch '2014.11' into jeremy-2014.11-tagging.

Conflicts (resolved):
	get-versions.sh

Fix executable status of tag-release.sh
Merge remote-tracking branch 'adapteva/jeremy-2014.11-tagging' into master

Conflicts:
	ChangeLog
	build-epiphany-sdk.sh
	define-release.sh
Remove remaining release flag functionality

* build-epiphany-sdk.sh: Remove release flag (-R) functionality. Leave it
as a no-op for now.
* install-sdk.sh: Remove --release flag.
Move SDK components to basedir.

* sdk-components: Move SDK components (epiphany-libs & parallella-linux)
to basedir.
* build-epiphany-sdk.sh: Likewise
* install-sdk.sh: Likewise
download-toolchain.sh: Rename to download-components.sh

* download-toolchain.sh: Rename to download-components.sh
* build-epiphany-sdk.sh: Adjust for renaming.
Switch to new components format.

All components consolidated into one file.
Each component has a class (see components.conf for details)
Everything builds but there are still some rough edges. These will be
fixed in a later commit.

* components.conf: Created. Switch to new components format. There are
still some rough edges. These will be fixed in a later commit.
* toolchain-components: Removed.
* sdk-components: Removed.
* build-toolchain.sh: Adjust for new components format.
* download-components.sh: Likewise.
* get-versions.sh: Likewise.
* install-sdk.sh: Likewise.
* tag-release.sh: Likewise.
Merge branch 'ola-devel'