Merge pull request #5 from mvidner/workshop_adaptation_for_conversion

Fixes to make sysconfig (almost) work in a clean VM.
copy arg is also instance method
add missing wfm call
implement one of builtins
fix conversion to more complex data types
support frame number in log calls
add YReference to represent references from ycp and bunch of fixes
decrease logging level
few fixes in ruby code
bunch of fixes and first attempt to allow calling function with references
another bunch of fixes needed to run modules
fix unescaping %
various fixes
fix sformat to be have similar behavior like ycp sformat
added regexppos() builtin
Merge pull request #6 from lslezak/workshop_adaptation_for_conversion

added regexppos() builtin
added tohexstring() builtin
Merge branch 'workshop_adaptation_for_conversion' of github.com:yast/yast-ruby-bindings into workshop_adaptation_for_conversion
add tolstring builtin
added toasci() builtin