update CHANGES

Author: mattfeld

CHANGES

@@ -1,6 +1,7 @@
 Release 0.12.0-rc1 (April 20, 2016)
 ============
 
+* ENH: Added grad_dev input to fsl.dti.bedpostx5 interface(https://github.com/nipy/nipype/pull/1493)
 * ENH: ResourceMultiProc plugin to support resource allocation (https://github.com/nipy/nipype/pull/1372)
 * ENH: Added dcm2niix interface (https://github.com/nipy/nipype/pull/1435)
 * ENH: Add nipype_crash_search command (https://github.com/nipy/nipype/pull/1422)