BSR & token Lext/Rext LeftExtent/RightExtent comments improved

v3.4.0 Candidate

V3.3.2

Version 3.3.1

V3.2.9 candidate 1

Use latest github.com/goccmack/goutil/ioutil

Issue Generated files are set as executable #15 fixed

v3 branch created for this major version

V3.2.4