[Truffle] Error if you reopen a class with a different superclass.
[Truffle] String#encode
[Truffle] Match encodings in string interpolation.
[Truffle] With encoding compatibility exceptions, string interpolation has side effects that we can't ignore.
[Truffle] String#ord, gets the last of the string specs passing.
[Truffle] Remove the print load option, remove loading from URIs, and simplify loading in general.
[Truffle] Regexp.union specs don't pass any more (they probably never did).
[Truffle] Type check on $0
[Truffle] Work on the semantics of $-0 and $/
[Truffle] A few more predefined specs.
[Truffle] Work on capture variables.
[Truffle] Start to tag why the remaining specs fail.
Merge branch 'master' into truffle-head