[TASK] Introduce new TypoScript location for collections (safe merge)

This enables the new location plugin.tx_fluidpages.collections.extensionKey to be used, finally separating FluidPages from FED. For backwards compatibility the old location is merged but given lower priority than the new location.
Merge pull request #21 from NamelessCoder/typoscriptpath

[TASK] Introduce new TypoScript location for collections (safe merge)