* savegames stored an index in the switch table and performed no validation when loading a savegame.
* setting of a random switch animation duration was broken.
* separated the 2 values stored in the Time variable into 2 separate variables.
* defining a switch with one texture already belonging to another switch could leave broken definitions in the switch table.
- added function for serializing switch and door animation pointers.
- bumped min. savegame versions due to changes to DButtonThinker and removed all current savegame compatibility code.
SVN r3030 (trunk)
- moved all code and data for Build tile management into FTextureManager.
- moved texture animation management into FTextureManager.
- changed: Animate textures only once per frame, not per view. Otherwise with animations that have sub-frame accuracy camera textures of the same area can show different animation frames if the frame changes falls between the rendering of the different views.
SVN r3026 (trunk)
