* removes unnecessary code
* adds test of wf_status
* adds tests of wf_message
* adds tests of wf_message_queue
* changed branch of coverage badge to display correct results
* moves core tests into separate subdirectory
* increases coverage of timer test
* moves adapter specific tests into separate directory
* moves provider specific tests into separate directory
* adds tests of jsonrpc utilities
* adds tests of jsonrpc request
* adds test of jsonrpc response
* adds tests of jsonrpc server
* adds tests of jsonrpc proxy
* adds integration test (found some issues)
* disables problematic tests
* fixes resource leak: pending timer after cleanup proxy
* fixes order of cleanup to prevent processing pending requests after filesystem shut down
* fixes some memcheck and helgrind errors: initialization of lws_log; setup of client and server
* disabled a test
* fixes error in msleep utility
* fixes deadlock at IntegrationTest using valgrind
* removes unit test code from coverage report
* adds some integration tests
* makes badge show coverage of master
* fixes some coding style issues
* fixes eary trigger of is_connected (provider)
* fixes read error in 32 bit environments\n\ninode is always 64 bit, but variadic wf_impl_jsonrpc_proxy_invoke expects int
