Merge pull request #201 from heiseda/master

Changed print() operator's handler to use console.send(), mirroring the ...
Merge pull request #202 from heiseda/master

Merge AC matching speedup into master.
Added AC matching tests to src/check
Added proper classpath for the Scala interpreter.
Added handling for ANY type in get_mandatory_bindings().
Moved all to get_mandatory_bindings to occur after some error checking.