Update spatial.adoc
Update spatial.adoc

Set table column widths to 10,45,45 to make more readable.
Fixed broken new lines.
jMonkeyEngine/wiki.jmonkeyengine.org,jMonkeyEngine/wiki.jmonkeyengine.org,jMonkeyEngine/wiki.jmonkeyengine.org,jMonkeyEngine/wiki.jmonkeyengine.org