DOC: Update changelog

Author: effigies

doc/changelog/1.X.X-changelog

@@ -1,4 +1,4 @@
-1.2.2 (September 05, 2019)
+1.2.2 (September 07, 2019)
 ==========================
 
 ##### [Full changelog](https://github.com/nipy/nipype/milestone/33?closed=1)
@@ -7,9 +7,11 @@
   * FIX: ``loadpkl`` failed when pklz file contained versioning info (https://github.com/nipy/nipype/pull/3017)
   * FIX: Update mne.WatershedBEM command line (https://github.com/nipy/nipype/pull/3007)
   * FIX: Specify correct stop criterion flag in PETPVC (https://github.com/nipy/nipype/pull/3010)
+  * ENH: add interface for AFNI 3dTsmooth (https://github.com/nipy/nipype/pull/2948)
   * ENH: Additional arguments to ANTs N4BiasFieldCorrection (https://github.com/nipy/nipype/pull/3012)
   * ENH: Add ``--rescale-intensities`` and name_source to N4BiasFieldCorrection (https://github.com/nipy/nipype/pull/3011)
   * ENH: Add index_mask_file input to ImageStats (https://github.com/nipy/nipype/pull/3005)
+  * RF: Remove versioning from loadpkl (https://github.com/nipy/nipype/pull/3019)
   * MAINT: Add ``python_requires`` to package metadata (https://github.com/nipy/nipype/pull/3006)
 
 1.2.1 (August 19, 2019)