Fix HTTP headers in image member add
Refs: #5115
Add --diagnostics to server info
Conflicts:
kamaki/cli/commands/cyclades.py
Allow unicode values in HTTP headers
Refs: #5110
All URL-space params are now URL-encoded
Refs: #4986
Fix typos in documentation
Fix bug with --unpublish for update_image
In image modify, make property-del a required arg
Refs: #4940
Update version tag and Changelog
Add user_info and user_term for bw compatibility
Refs: #4880
Backwards compatibility for get_service_endpoints
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