Changed required execution environment to Java 7

Change-Id: I3ad6d915be21dca97e41637a71957771f01bc5d2
Updated vendor information.

Change-Id: I42e204e0804cb6dc76ae0bac3e29baa7ded92230
Move static methods from URIImpl to URIs.

Change-Id: I7865d35247db6263cca1b6bf675ecc7b864636eb