draft for release notes/changes doc
added new file for m4_002 release
changes to include new file for m4_002
included a draft for m5_001 release
Merge branch 'master' into t199-changes-release-notes
Merge branch 'master' into t199-changes-release-notes
edited m4_001 release notes, refs #199
removed glossary, refs #194
edited m4_002 and m5_001 release notes, closes #199