Updated common.h to match style guide
Updated desktop code to match style guide
Updated event handling to match style guide
Updated ewmh support to match style guide
Updated helpers to match style guide
Updated window history to match style guide
Updated message handling to match style guide
Updated main code to match style guide
Updated monitor code to match style guide
Updated pointer tracking to match style guide
Updated querying to match style guide
Updated restoring to match style guide
Updated rule handling to match style guide
Updated settings loading to match style guide
Updated stack to match style guide
Updated subscribe code to match style guide
Updated window tree to match style guide