[BUGFIX] Inconsistent assignment of template variables

This fixes an issue with variables which are resolved to be inserted in the View. Before, variables would never contain the ones defined in the flexform. After, the flexform variables are used if they contain a "settings." prefixed array.

Fixes: https://github.com/FluidTYPO3/fluidcontent_bootstrap/issues/37
Fixes: #121
[FEATURE] Support settings.useTypoScript natively in Flux controllers