use of configure.ac for cmake lib abi versioning
use of configure.ac for cmake lib abi versioning
Merge branch 'master' of tycho:sources/sipwitch
system config option
revised cmake for manpages
more cmake support
Merge branch 'master' of tycho:sources/sipwitch
revised sipwitch cmake for unix configs
merge
Merge branch 'master' of tycho:sources/sipwitch

Conflicts:
	libsipwitch.pc.cmake
fixed config and cmake
cmake build support complete