fixes #977, blocks module name was incorrent in modifyblockposition 

The old blocks name was used instead of ZikulaBlocksModule
Fixed logic error.
Properly handling Symfony response, closes #918.
Merge pull request #978 from espaan/patch-25

fixes #977, blocks module name was incorrent in modifyblockposition
Merge pull request #979 from cmfcmf/response-fix

Removed the weird cache-control strings and fixed a logical error where each unknown function was redirected to the Hooks page.
Merge branch '1.3'