fix some bugs in ListBuiltin
fix copyright
fix bug with stdout
fix more bugs in ListBuiltin code
Merge pull request #661 from dwightguth/confvar

fix some bugs in ListBuiltin
add known issue to readme
update readme text
Merge pull request #673 from dwightguth/readme

add known issue to readme
Merge branch 'unified-builtins2' into duplicateModule
Renaming IO to K-IO in file io.k