* Fixed comments messed up by auto-formatting
* Minor formatting changes
* Combined two conditions in the door-placement code into an equivalent
condition
* Switched to deleting dimension data when a dimension is removed
instead of trying to figure out which dimensions were removed later
* Fixed a bug with blacklist paths
* Rearranged saving code slightly to avoid the potential performance
impact of repeated calls to getAbsolutePath()
Made saving a bit more robust, now we only delete ones that where not
modified. Also overhauled door placement, its all handled by the
eventHandler now.
