Fix Travis caching config
Fix Travis caching config

IATkachenko/gallery,owncloud/gallery,owncloud/galleryplus,owncloud/gallery,imjalpreet/gallery,tahaalibra/gallery,setnes/galleryplus,viraj96/gallery,interfasys/galleryplus,setnes/gallery,imjalpreet/gallery,tahaalibra/gallery,owncloud/gallery,owncloud/galleryplus,viraj96/gallery,IATkachenko/gallery,imjalpreet/gallery,setnes/gallery,IATkachenko/gallery,desaintmartin/gallery,owncloud/galleryplus,tahaalibra/gallery,setnes/galleryplus,viraj96/gallery,interfasys/galleryplus,desaintmartin/gallery,setnes/gallery,desaintmartin/gallery,setnes/galleryplus,interfasys/galleryplus