-Changed Program.cs to not use a couple try statements when debugger is attached.
-Implemented the Undo/Redo menu item buttons.
-Ctrl-deselecting frames in TasView now supports dragging.
-Bugfix: TAStudio was refreshing before autoscrolling to cursor.
-Partial fix: Made setting last visible frame more accurate when lag frames are hidden.
-Removed a line that set an unused local variable.
-Bugfix: Scrolling away from selection with lag frames hidden messed up the display.
-Double-click markers to jump to that frame.
-Drag painting input was one frame behind cursor.
-Some commented-out code for stuff I was messing with may also be present. (All edits were marked with SuuperW comment line.)