fix(image-loader): create both cache directories independently (#40)
fix(image-loader): create both cache directories independently (#40)

* Bugfix: create both cache directories independently

Otherwise on iOS the temp directory will NOT be created if the cache
directory exists

* Bugfix: Only check existence of cache directories if they are not replaced anyhow

zyra/ionic-image-loader,zyramedia/ionic-image-loader,mtoio/ionic-audio-loader