Changed required execution environment to Java 7

Change-Id: Idc5d1b155a18ed1c31fbef22ba98f2f809f241fd
Updated vendor information.

Change-Id: I10ae68115a3587392713b613f155cd398d9f455c
Update the KOMMA vocabulary.

Change-Id: I7de32ce8ef69b88700022589767f0888623bf017
Move static methods from URIImpl to URIs.

Change-Id: Iabf2295dc017a5b919bd00b63358006e909a7f08
Move role registrations to KommaModule.

Change-Id: I5e6101b929aca0d25ffb77d4e3a986e1a2adf307
Removed superfluous properties.

Change-Id: Ie727513980fc082da3e05afcd175249c464f965d