template<> -> template <>
Some more reformatting according to uncrustify results.

Mouse movement events are sent during autopanning, as the cursor position changes in the world coordinates (even if it stays still in the screen coordinates). It allows tools to update their state, as if the mouse was moved.

Added generation of CancelTool event upon ESC key press.
Minor bugfix.

Added core tool framework files + boost::context assembly stuff (initial, very buggy and unfinished work).