fixed grid around submit button (sulu#114)

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,26 @@
+| Q | A
+| --- | ---
+| Bug? | no
+| New Feature? | no
+| Bundle Version | Specific version or SHA of a commit
+| Sulu Version | Specific version or SHA of a commit
+| Browser Version | Browser name and version
+
+#### Actual Behavior
+
+How does it behave at the moment? 
+
+#### Expected Behavior
+
+What is the behavior you expect?
+
+#### Steps to Reproduce
+
+What are the steps to reproduce this bug? Please add code examples,
+screenshots or links to GitHub repositories that reproduce the problem.
+
+#### Possible Solutions
+
+If you have already ideas how to solve the issue, add them here.
+(remove this section if not needed)
+

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,39 @@
+| Q | A
+| --- | ---
+| Bug fix? | no
+| New feature? | no
+| BC breaks? | no
+| Deprecations? | no
+| Fixed tickets | fixes #issuenum
+| Related issues/PRs | #issuenum
+| License | MIT
+
+#### What's in this PR?
+
+Explain the contents of the PR.
+
+#### Why?
+
+Which problem does the PR fix? (remove this section if you linked an issue above)
+
+#### Example Usage
+
+```php
+// If you added new features, show examples of how to use them here
+// (remove this section if not a new feature)
+
+$foo = new Foo();
+
+// Now we can do
+$foo->doSomething();
+```
+
+#### BC Breaks/Deprecations
+
+Describe BC breaks/deprecations here. (remove this section if not needed)
+
+#### To Do
+
+- [ ] Update CHANGELOG.md
+- [ ] Create documentation
+

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## 0.4.0 (unreleased)
 
+ - FEATURE     #114    Fixed grid around submit button
  - FEATURE     #113    Fixed last width when next has no place
  - FEATURE     #109    Add symfony 3 to test runs
  - FEATURE     #108    Add widths to bundle configuration

Form/Type/DynamicFormType.php

@@ -144,7 +144,19 @@ public function buildForm(FormBuilderInterface $builder, array $options)
         ]);
 
         // Add submit button.
-        $builder->add('submit', SubmitType::class, ['label' => $translation->getSubmitLabel()]);
+        $builder->add(
+            'submit',
+            SubmitType::class,
+            [
+                'label' => $translation->getSubmitLabel(),
+                'attr' => [
+                    'width' => 'full',
+                    'widthNumber' => $this->getItemWidthNumber('full'),
+                    'lastWidth' => true,
+                    'placeholder' => '',
+                ],
+            ]
+        );
     }
 
     /**
@@ -236,7 +248,7 @@ private function getLastWidth(&$currentWidthValue, $width, $nextWidth)
             return true;
         }
 
-        // if next has no place in current row current is last width
+        // if next item has no space in current row the current item is last
         if (($currentWidthValue % 12) + $nextWidthNumber > 12) {
             $currentWidthValue += 12 - $currentWidthValue % 12;