Added model interfaces
Fixed interfaces
Added implementations
Fixed package naming. Created menu servlet

Model classes are now ordered in deferent packages.
Created menu servlet for request mapping about menus. Also useful for
beans instantiation and spring controllers integration, necessary for
menu entity.
pom
Merge branch 'protoModel' into dev

Conflicts:
	QorderWS/target/m2e-wtp/web-resources/META-INF/maven/com.qorder/qorderws/pom.properties