KAZOO-2412: the user_auth API needs to return the source_url attribute of applications
Merge pull request #314 from 2600hz/KAZOO-2412

KAZOO-2412: the user_auth API needs to return the source_url attribute o...
HELP-9866: move the activation stage to the first step and fix checking for exipred cards
3.09: handle_channel_event/3 is called by gen_listener, violating the
expected types. Change function name to not match what gen_listener
looks for (should only call the /2 variant).
KAZOO-935: First draft
KAZOO-935: callflow to konami
KAZOO-935: ignore empty json objects when sending metaflow requests
KAZOO-935: fix konami move to work on both legs
KAZOO-935: ignore endpoint id on dtmf

cleanup logging, formatting

fix function call to whapps_call
KAZOO-935: Callflow for " ability to pick off / move an in-progress call to another device belonging to the same user"