fix two very minor bugs: if anyone ever uses SLINEAR16 as a format in RTP,...

fix two very minor bugs: if anyone ever uses SLINEAR16 as a format in RTP, ensure that the samples are byte-swapped to network order if needed. also, when a smoother is operating on a format that has a sample rate other than 8000 samples per second, use the proper sample rate for computing delivery timestamps.



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@177229 65c4cc65-6c06-0410-ace0-fbb531ad65f3