I've found KeyBinder source on the Net.
I've compiled it nicely, but there is a catch:
I've got .so library as a result, but Code::Blocks asks for .cbplugin file.
What should I do?
You can copy that file into:
home/yourusername/.codeblocks/share/codeblocks/plugins
and the correct manifest.xml zipped with the name of the plugin to:
home/yourusername/.codeblocks/share/codeblocks
And next time codeblocks will try to load the plugin, if not check the pluguin menu->manage and enable it.