* updated grub2 (1.99 -> 2.00)


git-svn-id: https://svn.exactcode.de/t2/trunk@42140 c5f82cb5-29bc-0310-9cd0-bff59a50e3bc
	* work on more grub2 build integration, cleanup, enable efi


git-svn-id: https://svn.exactcode.de/t2/trunk@42141 c5f82cb5-29bc-0310-9cd0-bff59a50e3bc