windows : fix breakage after 4d6074 which moves the locales files. (#145)
windows : fix breakage after 4d6074 which moves the locales files. (#145)

XWalk locales are now located in locales/xwalk instead of locales/
Special case here by checking the new path and then the old path if
the new path doesn't exist. It will avoid to sync the app-tool release
with the version of Crosswalk after 4d6074.

BUG=APPTOOLS-363
crosswalk-project/crosswalk-app-tools,crosswalk-project/crosswalk-app-tools,crosswalk-project/crosswalk-app-tools