oops, this was a duplicate
Merge pull request #251 from rmmh/master

bugfix
Merge branch 'dev'
fix #252: again + messages, fight
increment version number
fix #253 No error if you duplicate declare sounds

i'll allow duplicates for more complicated ones(involving
properties/&c.), because there could be overlap
compiling
fix #254: make failed rigid rules not block late rules from executing.
fix #246: only let one rigid body rule apply to a cell at a time.

Also updated with a more complete test. The old test relied on
broken behavior related to #254.
fix #244: ban objects named "message", it confuses the parser.
simplify CellPattern.replace rigid logic