NXP-11781 - update readme and licenses
NXP-11781 - update version post release 5.7.1
Merge branch 'fix-NXP-11781-readme'

Conflicts:
	nuxeo-distribution-resources/src/main/resources/doc-dm/readme.html
	nuxeo-distribution-resources/src/main/resources/doc/README.txt
	nuxeo-distribution-resources/src/main/resources/doc/readme.html