Changed required execution environment to Java 7

Change-Id: Ica8e4a74f45669f208e26843144744b26cbaeea7
Updated vendor information.

Change-Id: I45b0097acbe6c3847b4e9248d35e05a62d24b43d
Move static methods from URIImpl to URIs.

Change-Id: I0b84442dea9cc257dc06fb583c804a0b5e5a149a