Added ivrcall RESET api. ivrcall implements voice validation code,
that's a new service supplementing sms validation code.
Utilize customized phrase to play validation code.
Reverted api name to ivrcall, this's a more generalized solution.
this api can play any customized phrase to user.
Merge branch 'feature/ivrcall' of ssh://kazoo/opt/kazoo into feature/ivrcall

Conflicts:
	applications/crossbar/src/modules/cb_modules_util.erl
	applications/ecallmgr/src/ecallmgr_originate.erl
	core/whistle-1.0.0/src/api/wapi_resource.erl