-Fixed issue with Special Block and door gems.
-Added Special Block ability to limit no of items spawned
(Will have a proper look at the rest of the Special Block features next)
-Added switches.
Switches will switch the 'switch block' from its start condition.
so
A Block that starts visible will disappear, suitable for blocking areas
A Block that starts hidden will appear, suitable for bridges.
If a reset time is set, then the blocks will restore to their original setting when the time runs out.
Toggle blocks ignore the timeout and just toggle on press.
The 'opposite action' row is for advanced users only :) you should only need to use this if you want one switch to enable blocks and another to disable.
-Fixed top of ladder issue.