Only update twice if we are changing tile data

War originally modified each block twice when loading, even if there was no metadata. Now it will only update once if there is no metadata.
Don't modify block type/data if it has not changed
Configuration setting to allow ender chests
Attempt at some slight saver speed ups
Merge branch 'master' into nimitz-v2
Merge branch 'no-save-air' into nimitz-v2

Conflicts:
	war/src/main/java/com/tommytony/war/mapper/ZoneVolumeMapper.java