What changed in EDuke32, build by build

This requires ripping out the .proj member of tiledata_t back into ProjectileData[] again because it was the only one in g_tile[] that changed during the course of a game. The g_tile[] array is now also correctly flagged as "constant throughout a game" (DS_NOCHK). Savegame version bumped.

It's still not pretty though since there's no interpolation from G_DrawRooms().

Also, enable showing sprites in Mapster32's overhead view again, since that was one (the only?) use of that code path. The uninitialized read was introduced in r2927.

Instead of later in P_ProcessInput(). This fixes one drawrooms() call in between where the sectnum is the camera's, but the position the player's, which can lead to a slow "outer view" render in Polymer.

arrays; any write access to them will run the corresponding hook and write to the [sector/wall/sprite/tsprite]clean array. Note: tsprite and sprite use the same hook and require running a few more instructions per access in order to disambiguiate; this could be made more optimal (like the other arrays) by clearly separating the types in the game code. Note #2: taking a member's address currently marks it dirty because of tons of helper functions across the editor code. I don't know how many read-only accesses we have after taking a member address, but it could also be fixed with some finessing of the code.

This means that the "Keyboard Setup" should now properly reflect the bindings, except in the theoretical case of one gamefunc being bound more than two keys. (What was fixed is the one key to many gamefuncs case.)

This fixes a bug where it's not possible to split a sector under certain circumstances, reported by Micky C here: http://forums.duke4.net/topic/1348-mapster32-problems-and-bugs/page__view__findpost__p__138380 Also, don't allow zero in various 'F functions: Resize selection and Global {shade, visibility} divide.

When LShift is pressed and the mouse is over a linking sprite (as determined by the tag labeling system), lines are drawn to all other sprites, and pressing [ or ] will cycle these then. False positives and missed sprites are possible. Additional changes: - consider SE 31 and 32's lotag to NOT be linking, since the ACTIVATOR is what matters. The original maps are inconsistent there. - When pressing Alt+[ or Alt+] and there are no corruptions, say so instead of doing [ or ].