Changed required execution environment to Java 7

Change-Id: I9abb0b9b8d8f23c884e4231964e04d1f6a7f0077
Updated vendor information.

Change-Id: I14f8992ce9e07a9c60711ee3d1c07e7efaef0096
Move static methods from URIImpl to URIs.

Change-Id: I2e233c8f633dc5fc245c615e3cad863259163ed7