Removed stray '_' from AO_compare_and_swap. Cast volatile int to volatile size_t for ATOMIC_INCR/ATOMIC_DECR when using libatomic-ops (Reported by Steve Hanselman).

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5313 43c1dc8c-776e-4df2-8ef1-6e829299be21
Fix sccp message with beep but without timeout

git-svn-id: https://svn.code.sf.net/p/chan-sccp-b/code/trunk@5314 43c1dc8c-776e-4df2-8ef1-6e829299be21