DOC: Update CHANGES with gh-1390

Author: effigies

CHANGES

@@ -25,6 +25,7 @@ Next release
 * ENH: Interfaces for MINC tools (https://github.com/nipy/nipype/pull/1304)
 * FIX: Use realpath to determine hard link source (https://github.com/nipy/nipype/pull/1388)
 * FIX: Correct linking/copying fallback behavior (https://github.com/nipy/nipype/pull/1391)
+* ENH: Make interfaces.utility.Merge(0) merge a list of lists (https://github.com/nipy/nipype/pull/1390)
 
 Release 0.11.0 (September 15, 2015)
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