Added some more checks

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,20 +1,23 @@
 FOR CONTRIBUTOR:
-* [ ] - I have read the [CONTRIBUTING.md](https://github.com/galaxyproject/tools-iuc/blob/master/CONTRIBUTING.md) document
-* [ ] - This tool is appropriate for the tools-iuc repo (see [CONTRIBUTING.md](https://github.com/galaxyproject/tools-iuc/blob/master/CONTRIBUTING.md))
+* [ ] - I have read the [CONTRIBUTING.md](https://github.com/galaxyproject/tools-iuc/blob/master/CONTRIBUTING.md) document and this tool is appropriate for the tools-iuc repo.
 * [ ] - License permits unrestricted use (educational + commercial)
 * [ ] - This PR adds a new tool or tool collection
 * [ ] - This PR updates an existing tool or tool collection
 * [ ] - This PR does something else (explain below)
 
 FOR REVIEWER:
 * [ ] .shed.yml file ok
+    - [ ] Toolshed user `iuc` has access to associated toolshed repo(s)
 * [ ] Indentation is correct (4 spaces)
 * [ ] Tool version/build ok
 * [ ] `<command/>`
   - [ ] Text parameters, input and output files `'single quoted'`
   - [ ] Use of `<![CDATA[ ... ]]>` tags
+  - [ ] Parameters of type `text` or having `optional="true"` attribute are checked with `if str($param)` before being used
+* [ ] Data parameters have a `format` attribute containing datatypes recognised by Galaxy
 * [ ] Tests
   - [ ] Parameters are reasonably covered
   - [ ] Test files are appropriate
-* [ ] Toolshed user `iuc` has access to associated toolshed repo(s)
+* [ ] Help
+  - [ ] Valid restructuredText and uses `<![CDATA[ ... ]]>` tags
 * [ ] Complies with other best practice in [Best Practices Doc](http://galaxy-iuc-standards.readthedocs.io/en/latest/best_practices/tool_xml.html)