BHV-6022-fix: Change remapping files/folders to work fine

Tested on OSX

Problem
* filed in https://github.com/enyojs/enyo/commit/dd96f393b136c39d5ef811b1473978138a67dde3

fixed an invalid checkMapping() function call  
* pass `true` argument to `checkMapping()` so that enyo's deploying step can remap files/folders properly.

Enyo-DCO-1.1-Signed-off-by Junil Kim <logyourself@gmail.com>