Fix some cmake issues

fix #2551

Provide a make dist target

Rename cmake target test->test_suite for cmake 3.0

See CMP0037

Write the software version, including the git hash, in config.h using cmake

includes from cmake BINARY_DIR should be included before considering SOURCE_DIR

Silence warnings coming from Botan headers

Implement TLS support using Botan

For now, it tries two TLS ports and then connects to the non-tls port.  In
the future we would like the user to be able to configure that.

fix #2435

Use libuuid to generate unique IDs for iq and adhoc sessions

mini reorder

[cmake] Do not print useless messages when an optional lib is not found

Use epoll on linux by default, poll otherwise

Upgrade to C++14

Fix the CMakeLists.txt to correctly have -Ibuild/src/

Add support for systemd-daemon

Merge branch 'master' into dummy_chan

Improved doc rule in the cmake thing

Do not link with pthread

Fix the CMakeLists.txt regarding ronn

Move CMake’s config.h(.cmake) files into src/

Build the man page as part of the build process, if ronn is found