Added time_of_day and time_of_day_str.
Removed print(), error() etc. Added logger::print()...
Removed useless includes.
Configured timeout duration for server::netcom.
Moved some code from server-cli to server::instance.
Added server.log.
Fixed POSIX code for console coloring.
Loggers can now append to log files.
Added crude POSIX detection in project common.
Added clear sign of end of program.
Added shared_collection_factory::clear().
Added colors to error, warning, note, ... in the console.
Moved POSIX detection into main CMakeFile
Added is_packet_id().
Added scoped_toggle().
Removed useless include.
Enabled optimizations in debug mode. Removed useless warning.
Cosmetic.
Implemented clean server shutdown sequence.