ARQGRA-308: Throwing exception when Page Fragment is final class

* it is better to notice an user that Page Fragments can not be declared
  as final classes by throwing an exception than just by injecting
nothing to the @FindBy injection point
ARQGRA-344: fix xhrInterception.js test
ARQGRA-338: fix & generate JavaDoc for API and SPI
ARQGRA-351: implemented ftest for @InFrame @FindByJQuery
[maven-release-plugin] prepare release 2.0.0.Beta1
[maven-release-plugin] prepare for next development iteration
ARQGRA-373: Fixed resolving non-absolute locations
ARQGRA-373: changed TestPageObjectsLocation to use deployment-relative URLs
ARQGRA-378: make GrapheneRuntime an Arquillian service
ARQGRA-375: Relocation when named deployment fixed

* Using of Graphene.goTo() together with named deployment fixed.
* Retrieving of the contextRoot changed
ARQGRA-375: use @ClassScoped ContextRootStore to store URL for use in goTo method
ARQGRA-372: upgrade to Drone 1.2.0.Beta2 (aligned with new Enhancer API)
change resource:// location to relative one; removing System.out
[maven-release-plugin] prepare release 2.0.0.Beta2
[maven-release-plugin] prepare for next development iteration
ARQGRA-379: upgrade to Drone 1.2.0.CR1
[maven-release-plugin] prepare release 2.0.0.CR1
[maven-release-plugin] prepare for next development iteration
Merge branch 'release/2.0.0.CR1'
ARQGRA-386: @InitialPage can not be placed over field

* there is currently no support for this, removed target FIELD to avoid
 confusion