Fixes for 1.3 pod version: added checking for contentSizeFillsBounds property to avoid unnecessary using gridView.bouns.size as gridView.contentSize.
Fixed nullifying of contentOffset after changing bound property.
Isolated condition with brackets for easy reading.
Merge pull request #1 from metastudio/fix-for-version-1.3

Fixes for 1.3 pod version: added checking for contentSizeFillsBounds pro...