[FEATURE] Add PackageKeys as namespaces to TemplateParser
[FEATURE] Add PackageKeys as namespaces to TemplateParser

This change registers a Fluid ViewHelper namespace for every
active package.

This means, that you can call any package viewHelper without
declaring a namespace like this::

  <acme.somepackage:someViewHelper />

Depends: Ie4e40713ec7b2a31464ddd633458d757d55d52e7
Change-Id: I965cb54c3125f80e7a5ae46ede72ee9027ed006e
Related: FLOW-151
Releases: master
Original-Commit-Hash: e2064e8ada03ef184a23d10615a1249292a438b9

mkeitsch/flow-development-collection,robertlemke/flow-development-collection,mkeitsch/flow-development-collection,kitsunet/flow-development-collection,fcool/flow-development-collection,albe/flow-development-collection,daniellienert/flow-development-collection,gerhard-boden/flow-development-collection,kitsunet/flow-development-collection,fcool/flow-development-collection,neos/flow-development-collection,daniellienert/flow-development-collection,kdambekalns/flow-development-collection,aertmann/flow-development-collection,dlubitz/flow-development-collection,aertmann/flow-development-collection,dlubitz/flow-development-collection,chewbakartik/flow-development-collection,daniellienert/flow-development-collection,dlubitz/flow-development-collection,aertmann/flow-development-collection,albe/flow-development-collection,neos/flow-development-collection,dfeyer/flow-development-collection,robertlemke/flow-development-collection,kitsunet/flow-development-collection,fcool/flow-development-collection,chewbakartik/flow-development-collection,robertlemke/flow-development-collection,dfeyer/flow-development-collection,dfeyer/flow-development-collection,albe/flow-development-collection,gerhard-boden/flow-development-collection,kdambekalns/flow-development-collection,robertlemke/flow-development-collection,bwaidelich/flow-development-collection,dfeyer/flow-development-collection,bwaidelich/flow-development-collection,fcool/flow-development-collection,neos/flow-development-collection,chewbakartik/flow-development-collection,mkeitsch/flow-development-collection,bwaidelich/flow-development-collection,gerhard-boden/flow-development-collection,kdambekalns/flow-development-collection,neos/flow-development-collection,kdambekalns/flow-development-collection