128054: REPO-495: When uploading/updating binary content, guess mimetype and encoding
- follow similar pattern to v0 Upload API (ignore Content-Type header)
- in the future, we might wish to loosen this restriction [pending MNT-16381] and/or allow admin's option to update mimeType/encoding directly via node metadata update
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@128104 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261