Update GSD5/Briefcase site address and naming.
Signed the CLA.
Merge branch 'master' of https://github.com/roma0104/TiddlyWiki5 into roma0104-master

Conflicts:
	editions/tw5.com/tiddlers/community/resources/Briefcase mGSD.tid
	licenses/cla-individual.md
Merge branch 'roma0104-master'