VOL-45: Update JavaScript ts() functions to specify domain. This commit is good for the 4.4 branch only. Since 4.4 will not be introducing a CRM.ts() function, we define our own.
Merge pull request #187 from GinkgoFJG/4.4-VOL-45

VOL-45 (JS only) for the 4.4-compatible version of CiviVolunteer