Added configurable preset separator to allow something other than an underscore in your remote file names (ie, a slash).
Added configurable preset separator to allow something other than an underscore in your remote file names (ie, a slash).

robinskumar73/imager,nishant8BITS/imager,LucidityDesign/imager,mkyung/imager,imagerjs/imager,madhums/imager