fixed grunt rev task for excluding dyn image files
fixed grunt rev task for excluding dyn image files

Dyn references images file excluded from rev name hashing. Such files
moves into a specific dyn-src-images folder
Revert "fixed grunt rev task for excluding dyn image files"

This reverts commit 6476a6611453a2bb9107ba42664836042a19795b.
Revert "Revert "fixed grunt rev task for excluding dyn image files""

This reverts commit 325eb19190845e54256441a136ec51ca21af12e6.