* log messages as they are sent and received
* log information about messages by overriding method print()
* reduced logging of autocompletion list
* removed log location from message and parsing logs, as they are known and make up 90% of logs
For easier use with int and other basic types, new logging macros where introduced that use stringstream internally, so
heterogeneous data can be logged using the following syntax:
LOG_INFO_STREAM(<< "hello " << 42 << '!');
This change removes the local std::string variable in the log macros due to possible name collisions with macro callers
in clang. Responsibility of this change is held by Malte.
Eberhard Graether