FIX: Case replaced by switch
Merge branch 'call'
FEAT: Call, output redirection, POSIX
FEAT: Call, input redirection, POSIX
FIX: Memory corruption.
FEAT: Basic Red binding for call
FEAT: Call binding in progress
FIX: Minor changes
correct typo: attributs => attributes
add handling of op! type
FEAT: preliminary release of new runtime lexer.red

For now, it is accessible only from the TRANSCODE function.
Currently only block!, integer! and string! parsing implemented.
FEAT: pass-thru for /CASE refinement on PARSE-TRACE.
FEAT: added support to char! parsing to runtime lexer.
FEAT: preliminary code for parsing any-word! and any-path! copied from %lexer.r.
rebasing to resolve merge conflict
remove unused /local fun from 'source
Merge pull request #693 from IngoHohmann/help

Help: correct a typo, and add handling of op! type.
FEAT: Low-level call API changed, work in progress
FIX: reverted wrong changes made by PR #693
FIX: minor extra tab removed (just to testing a fix in the build farm code).