Revert "Bug 922463 - Part 2: Modified httpd extension for multilocale.js"

This reverts commit bb7d576483f16e2ac76e6303279a6098c0333212.
Revert "Bug 922463 - Part 1: rewrite build/multilocale.py in javascript"

This reverts commit 43c7463d99e072c5d7d74a73a125a7bb3a8da329.