Changed required execution environment to Java 7

Change-Id: I40a26aecb1a3e586960d9ce04ae1a191b38908fc
Updated vendor information.

Change-Id: Iddcdc00f9e3a30deec322b4f6faaa7bb1769040c
Move static methods from URIImpl to URIs.

Change-Id: If5f421ff8065069111dd62d63f81e7fac72815b2
Distinction between DatatypeProperty and ObjectProperty is done by Parser

Change-Id: I6394cae7b42d2ba567376e46abe227fedc4f9c4b
Providing simple ManchesterSyntaxTest

Change-Id: I3fc87e2ebbf1b5cece52bf5f1a25161a3dcb9dea
Switching property rules, because data properties are more exclusive

Change-Id: If00f2adba67d2ae1d6ec1e6f098a5f3a53cec86a
Escape string literals.

Change-Id: Ib60bfc02da79655ddc7abaa59de4d6b95dcaa295
Fixed parsing of string literals.

Change-Id: I3b77a9f919c6a5540e1c2fd418b9ef2a9f29f69b