Update changelog with 2.8.1 changes

CHANGELOG.rst

@@ -29,6 +29,32 @@ Deprecations:
    Pylons package controller in CKAN<2.9
 
 
+v.2.8.1 2018-07-25
+==================
+
+General notes:
+ * Note: This version does not requires a requirements upgrade on source installations
+ * Note: This version does not requires a database upgrade
+ * Note: This version does not require a Solr schema upgrade
+
+Fixes:
+
+ * "Add Filter" Performance Issue (`#4162 <https://github.com/ckan/ckan/issues/4162>`_)
+ * Error handler update (`#4257 <https://github.com/ckan/ckan/issues/4257>`)
+ * "New view" button does not work (`#4260 <https://github.com/ckan/ckan/issues/4260>`_)
+ * Upload logo is not working (`#4262 <https://github.com/ckan/ckan/issues/4262>`_)
+ * Unable to pip install ckan (`#4271 <https://github.com/ckan/ckan/issues/4271>`_)
+ * The "License" Icon in 2.8 is wrong (`#4272 <https://github.com/ckan/ckan/issues/4272>`_)
+ * Search - input- border color is overly specific in CSS (`#4273 <https://github.com/ckan/ckan/issues/4273>`_)
+ * Site logo image does not scale down when very large (`#4283 <https://github.com/ckan/ckan/issues/4283>`_)
+ * Validation Error on datastore_search when sorting timestamp fields (`#4288 <https://github.com/ckan/ckan/issues/4288>_`)
+ * Undocumented changes breaking error_document_template (`#4303 <https://github.com/ckan/ckan/issues/4303>`_)
+ * Internal server error when viewing /dashboard when logged out (`#4305 <https://github.com/ckan/ckan/issues/4305>`_)
+ * Missing c.action attribute in 2.8.0 templates (`#4310 <https://github.com/ckan/ckan/issues/4310>`_)
+ * [multilingual] AttributeError: '_Globals' object has no attribute 'fields' (`#4338 <https://github.com/ckan/ckan/issues/4338>`_)
+ * `search` legacy route missing (`#4346 <https://github.com/ckan/ckan/issues/4346>`_)
+
+
 v.2.8.0 2018-05-09
 ==================