KAZOO-1901: Orphaned voicemail cleanup routine
KAZOO-2213
KAZOO-1901: Use list comprehension
KAZOO-1901: Add default value to [] if no messages
Merge pull request #275 from 2600hz/KAZOO-1901

KAZOO-1901: Orphaned voicemail cleanup routine
Add callerID to authz request headers
Merge pull request #281 from Sendhub/ben/add_callerid_in_authz_req

Add callerID to authz request headers
Potential typo: to_binary_lower should be to_lower_binary?
Merge branch 'master' into benchan/fix_possible_bug_to_binary_lower
KAZOO-2146: use quoted-printable transfer encoding for voicemail notification email
Merge pull request #282 from Sendhub/benchan/fix_possible_bug_to_binary_lower

Potential typo: to_binary_lower should be to_lower_binary?
Thanks!
Onnet detection fix for singular call hooks
Merge branch 'master' into benchan/onnet_detection_fix_in_singular_call_hook_handler
undo commit in master
Fix for onnet detection in singular call hook
Add support for greeting intro prompt and customized generic unavailable greeting
Fixes after compiling and testing
provide temporary/generic voice prompts
Call transfers are accounted as if they were made to the original caller
Remove onnet detection fix