[TASK] Fluid (View): minor naming cleanup
[TASK] Fluid (View): minor naming cleanup

Inside TemplateView::expandGenericPathPattern, the subpackageKey
was spelled subPackageKey. Additionally, if no subpackagKey is
set, we now expect a NULL value instead of an empty string.

Change-Id: I4d1a9e9248f296620af27c3d7bf3e14cc01517a8
Original-Commit-Hash: 87b4e2ea62d04303fc5ee23ee895d5cfe0586793

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