KAZOO-2213
Potential typo: to_binary_lower should be to_lower_binary?
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!
Add support for greeting intro prompt and customized generic unavailable greeting
Fixes after compiling and testing
provide temporary/generic voice prompts
Merge branch 'KAZOO-2213' of https://github.com/onnet/kazoo into onnet-KAZOO-2213
KAZOO-2213: centralize normalize_account_name/1
KAZOO-2213: use centralized version
KAZOO-2133: add flush_account/1 to remove all endpoints in the cache for an account db
KAZOO-2213: cleanup maintenance routines to set classifier actions on accounts/devices
Merge branch 'onnet-KAZOO-2213'
Merge pull request #286 from bpdavis-scratch/VoicemailCustomizations

KAZOO-2238 voicemail app prompt customizations
Merge branch 'KAZOO-2146' of https://github.com/bpdavis-scratch/kazoo into bpdavis-scratch-KAZOO-2146
KAZOO-2146: add optional content-transfer-encoding headers
KAZOO-2146: add get_ne_binary/{2,3,4} to whapps_config
KAZOO-2146: use quoted-printable transfer encoding for voicemail notification email
KAZOO-2146: add optional content-transfer-encoding headers
KAZOO-2146: add get_ne_binary/{2,3,4} to whapps_config