When finished input of checklist item, open new checklist item.

Thanks to nztqa ! Closes #828

CHANGELOG.md

@@ -3,9 +3,11 @@
 This release adds the following new features:
 
 * [REST API: Add PUT method to update a card](https://github.com/wekan/wekan/pull/1095) and
-  [related fix](https://github.com/wekan/wekan/pull/1097).
+  [related fix](https://github.com/wekan/wekan/pull/1097);
+* [When finished input of checklist item, open new checklist
+  item](https://github.com/wekan/wekan/pull/1099).
 
-Thanks to GitHub user zarnifoulette for contributions!
+Thanks to GitHub users nztqa and zarnifoulette for their contributions!
 
 # v0.27 2017-06-28 Wekan release