(svn r13269) -Codechange: build bridge window uses GUILists Sort() now
-Cleanup: make some globals part of the build bridge window

(svn r12135) -Codechange: Road and rail bridge selection windows were identical apart the caption. So remove one window definition and set manually the caption accordingly.
-Codechange: prepare the "type" of bridge parameter only once, at the beginning of the selection process. Makes less magic around.

(svn r12066) -Codechange: Rename GetBridge for the more common GetBridgeSpec
-Codechange: Remove direct access to the _bridge table in favor of the above mentioned GetBridgeSpec
-Codechange: Rationalize the use of Bridge type pointer

(svn r11374) -Codechange: Give meaning to the magical number that specifies the color of the text in a DrawString call.
Patch heavily based on BiBB's work (FS#1383)

(svn r10258) -Codechange: as we are now using int64 all over the place, it's better to use int64 variables in the string generating too instead of packing them into two int32s.
-Fix: some displays of money were wrong.

(svn r8128) -Codechange: Split sprite and palette remap into separate 32 bit values.
This lets us increase the sprite width from 14 to up to 29 bits,
effectively nulling the old sprite limit. Table changes in next commit.