Changes since 1.1:

"Combinations" section:
	-  Fixed ugly shadows from the switchable lighting
	-  fixed a bug where players can "portal bump" into the observation
	   office (Thanks siiig)

"Balls Out" section:
	-  Fixed (hopefully, since I can't test it) a rare physics bug where the
	   paddle wheel will not stop at 90 degree angles. (Thanks to Player1
	   for reporting this; I believe that this is the same problem Kiavik
	   ran into during the beta. Well... better late than never :-)

General:
	-  Changed to BMZ installation method
	-  the usual assortment of minor tweaks that I can't remember :-)


Changes since 1.0:

General:
	-  Text overlays (start/end + section titles) no longer appear on top of
	   the crosshair.

"Combinations" section:
	-  Fixed map error where it was diffucult for players to place a portal
	   near the metal ceiling in the third room.
	   (missing func_portal_bumper)

"Balls Out" section:
	-  Changed (hopefully improved :-) the explanatory signage;
	-  minor tweaks;
	-  more consistent "dissolve" effect when player or objects fall down
	   the chasm.


Changes since 0.1 beta:

General:
	-  Added auto-saves;
	-  added more hints and directions;
	-  added a logo for the bonus maps folder :-)
	-  tuned the lighting to reduce HDR over-exposure in some areas;
	-  various small improvements.

"Elementary" section:
	-  Made the "door clear-o-matic machine" more robust generally;
	-  the "rescue" button near the exit works properly.

"Combinations" section:
	-  Fixed rendering glitches;
	-  players can no longer grab the portal gun off the robotic arm through
	   the port holes;
	-  fixed a trigger near the last puzzle, which caused the door to
	   close prematurely, trapping the player inside.

"Balls Out" section:
	-  Fixed occasional game crash when the player falls into the chasm
	   (Source enging bug);
	-  Added an emergency escape trigger to the fan pipe, so players can't
	   accidentally shut themselves inside;
	-  the plastic pipes now deflect portals and players can no longer
	   get stuck near them;
	-  simplified physics calculations for the paddle wheel and tweaked
	   parameters so it turns more smoothly.

