Fix feature test inheritance_of_contexts

Squashed commit of the following:

commit 648dde937d964acf3e0598cc6aafde8cc8572aec
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Apr 22 11:03:40 2014 +0200

    ...

commit fa86711141c8b79b1513dcd60bfbc2d3c96298a2
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Apr 22 10:53:43 2014 +0200

    ... try try

commit 11eb78b80f67b333e25fd9efe644f3766fab6e6c
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Apr 22 09:40:11 2014 +0200

    ... inheritance of contexts

commit 53543919de933f6b3d8d4777a62b96337d743646
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Apr 22 08:59:35 2014 +0200

    Fix features test in inheritance_of_contexts (wait for js render process)

commit 4887e93d7c40906a38992470571cae9a25d814e0
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Apr 22 08:48:14 2014 +0200

    Remove a `@wip` annotation and switch to jsbrowser for a transfer_responsibility.feature