Capture compilation errors on additional templates

Shouldn't cause the whole page not to render but log an error. Should
provide more resilience against bad plugins.

src/octoprint/server/views.py

@@ -320,6 +320,8 @@ def _process_template_configs(name, implementation, configs, rules):
 					app.jinja_env.get_or_select_template(data["template"])
 				except TemplateNotFound:
 					pass
+				except:
+					_logger.exception("Error in template {}, not going to include it".format(data["template"]))
 				else:
 					includes[template_type].append(rule["to_entry"](data))