Version 2.0.50

There was a fairly big change to some of the logic checks in scripts. If you find any problems let me know!

• fix a few bugs where 0 == false and others would not evaluate to true.
• add #g, #go, #walk, #walkto aliases for #goto
• add roomobscured variable - set to 1 when roomexits contains obscured by a thick fog, 0 otherwise
• add roomportals variable - a piped list of non cardinal exits
• when room is obscured by fog, automapper will print the normal room exits
• proper map window toggling: if the map window is visible, but not active, the "cmd-m" hotkey will focus the window. If the map window is the active window "cmd-m" will close the window and focus the game window.