Bug 833229 - 3.a/4: interfance changes
Bug 833229 - 3.b/4: IPDL implementation
Bug 833229 - 3.c/4: implement MozVoicemailStatus in C++.
Bug 833229 - 3.d/4: DOM implementation
Bug 833229 - 3.e/4: implement GonkVoicemailService
Bug 833229 - 3.f/N: voicemail service factory
Bug 833229 - 3.g/4: shutdown voicemail service
rename pdu_builder.js
Bug 833229 - 4/4: test cases.