Verb/config (#32)

* add config verb

* more docs

* minor

* more docs

* add some properties to gather

* additional gather options

* more gather opts

* add support for dtmf verb

* 0.7.4 release notes

* dial referHook details

markdown/docs/webhooks/dequeue.md

@@ -17,9 +17,12 @@ You can use the following options in the `dequeue` command:
 | name | name of the queue | yes |
 | actionHook | A webhook invoke when call ends. If no webhook is provided, execution will continue with the next verb in the current application. <br/>See below for specified request parameters.| no |
 | beep | if true, play a beep tone to this caller only just prior to connecting the queued call; this provides an auditory cue that the call is now connected | no |
-| confirmHook | A webhook for an application to run on the callee's end before the call is bridged.  This will allow the application to play an informative message to a caller as they leave the queue (e.g. "your call may be recorded") | no |
 | timeout | number of seconds to wait on an empty queue before returning (default: wait forever) | no |
 
+<!--
+| confirmHook | A webhook for an application to run on the callee's end before the call is bridged.  This will allow the application to play an informative message to a caller as they leave the queue (e.g. "your call may be recorded") | no |
+-->
+
 The *actionHook* webhook will contain a `dequeueResult` property indicating the completion reason:
 
 - 'hangup' - the bridged call was abandoned while listening to the confirmHook message
@@ -28,6 +31,6 @@ The *actionHook* webhook will contain a `dequeueResult` property indicating the
 - 'error' - a system error of some kind occurred
 
 <p class="flex">
-<a href="/docs/webhooks/conference">Prev: conference</a>
+<a href="/docs/webhooks/config">Prev: config</a>
 <a href="/docs/webhooks/dial">Next: dial</a>
 </p>