don't try to mark out of scope value stacks
Merge pull request #116 from skaes/fix-out-of-scope-marking-segfaults

Thanks. WIll have to make a few other changes after this PR is accepted since the parse2 function is used by the scp parser but the debugging is very much appreciated.
release 2.2.2 with fix for Windows mutex
fixed struct segfault and added a force float on load option
fixed struct segfault and added a force float on load option