Update dependency for Node 0.8 compatibility.
Update dependency for Node 0.8 compatibility.

rubenswieringa/angular-gettext-tools,addaleax/angular-gettext-tools,BetterWorks/angular-gettext-tools,ZeeAgency/angular-gettext-tools,zvictor/angular-gettext-tools,davidostermann/angular-gettext-tools,gabegorelick/angular-gettext-tools,princed/angular-gettext-tools,crisbeto/angular-gettext-tools,andras-tim/angular-gettext-tools,rubenv/angular-gettext-tools,kvantetore/angular-gettext-tools,valin07/angular-gettext-tools