Each log message is now associated with its component, "wx" by default for
messages generated by wxWidgets and wxLOG_COMPONENT in general (which is empty
by default). Each component may have its own log level and they are
hierarchical allowing fine configuration of what exactly is logged.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61414 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775