Kun Huang 5c3f75ba6a Add x-remove-versions-location for feature: disable versioning
We can set x-versions-location empty to remove this header in API, but
to keep consistent, we should allow x-remove-versions-location too. The
usage is post "x-remove-versions-locaion: x", just like ACL remove
headers.

Fixed: bug #1107592

Change-Id: I1271eec6401d4a0e8c1a7c2d63aeb8dfef00bf6d
2013-03-17 07:30:00 +08:00
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