res_pjsip: Allow + at the beginning of a phone number when user_eq_phone is enabled.


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@427257 f38db490-d61c-443f-a65b-d21fe96a405b
res_pjsip: Apply the 'user_eq_phone' setting to the To header as well.


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@427259 f38db490-d61c-443f-a65b-d21fe96a405b