features: call pickup stasis refactoring

(issue ASTERISK-21544)
Reported by: Matt Jordan
Review: https://reviewboard.asterisk.org/r/2588/


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@393190 f38db490-d61c-443f-a65b-d21fe96a405b
res_parking: Dynamic Parking Lots

(closes issue ASTERISK-21644)
Reported by: Matt Jordan
Review: https://reviewboard.asterisk.org/r/2615/


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@393197 f38db490-d61c-443f-a65b-d21fe96a405b