Don't undefine bzero()/bcopy().

This was causing build failures against external libraries that happened to use
them, unless silly hacks were added to the modules that used those headers.

Review: https://reviewboard.asterisk.org/r/2359/


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@382292 f38db490-d61c-443f-a65b-d21fe96a405b
threadpool: Whitespace and comment corrections.

git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@382294 f38db490-d61c-443f-a65b-d21fe96a405b
threadpool: Make ast_threadpool_push() return -1 if shutting_down

git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@382295 f38db490-d61c-443f-a65b-d21fe96a405b
Fix a bug with ICE and strictrtp where media could get dropped.

If the end result of the ICE negotiation resulted in the path for media
changing it was possible for the strictrtp code to discard the RTP packets.
This change causes strictrtp to enter learning mode once again when the
ICE negotiation has completed successfully.
........

Merged revisions 382296 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@382297 f38db490-d61c-443f-a65b-d21fe96a405b
While the ICE negotiation is occurring leave strictrtp in an open state, media can and will come from different places.
........

Merged revisions 382298 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: http://svn.asterisk.org/svn/asterisk/trunk@382299 f38db490-d61c-443f-a65b-d21fe96a405b