Make correction to README (#36) and add InteractiveDebug function.
Check for errors when running arbitrary code.

The stack is only cleared if the call is successful, so that in errors one can get the error string at index -1.
Merge branch 'Dante12129-patch-1'
Update README.md

in "registering class member variable", the example is written with "bar.set_x(-4)"
it doesn't work, it should be : "bar:set_x(-4)"
Merge pull request #42 from GuilhemBernard/patch-1

Update README.md