removed extraneous comma that was breaking the CXX build

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1585464 13f79535-47bb-0310-9956-ffa450edef68
PROTON-557: add events for local endpoint state changes, add event categories.

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1585803 13f79535-47bb-0310-9956-ffa450edef68
PROTON-545: hopefully fixed conversion warning

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/trunk@1585817 13f79535-47bb-0310-9956-ffa450edef68
Do not assume there is just one element in CMAKE_MODULE_PATH
remove extraenous return
Do not redefine va_copy if not needed (for example, VS2013)
recv output is lost if aborted with ^C