Revert "Bump up lodash version to 2.4.1"

It is broken in Firefox

This reverts commit 5c08e271a2f681e4842a5b3e7259f7cefc4b1702.

Change-Id: I727abcc7ea441abacafb6d4b2dcdc611bdd3c91e
Merge "Revert "Bump up lodash version to 2.4.1""