Raised core revision

Ignore-this: b196545d206737efe762f8951e747996

darcs-hash:20140217154904-56b4d-2f09f1813cf1598ae140e02a1f7f2acc4364e249
Raised version and updated changelog

Ignore-this: c098d81ecfe8941232eecf0a1d75e39b

darcs-hash:20140217160930-56b4d-0c574a8d3d3f393cdffd2677ad101856e6ed184d