Updated README
	modified:   README.md
Further work on modularity, keys split to custom and stock
	modified:   rc.lua
	modified:   settings/startup.lua
	modified:   settings/window_rules.lua
	modified:   stock/binds.lua
	modified:   stock/signals.lua
Further work on modularity, kill() keybind dont work atm
	modified:   rc.lua
	new file:   settings/custom_binds.lua
	modified:   stock/binds.lua
	modified:   stock/signals.lua