more mixing tests
simplified marking of meta-modules, all modules are worker modules unless they have a "load" function.  I do not care about knowing if a meta-module also does SETENVs or not
fixed "sep" in prepend_path routines
removal of extra dbg.fini and dbg.print lines
new test for boost/unknown_version, nodups repair for prepend and append path
new mixed test
moving to TAG_VERSION 5.2rc2
remove dead help txt