CS fixes

- Trailing whitespace
Merge pull request #4847
[#4831] Fix run() return values

- Always return the application instance. (and fix docblock to indicate this)
- If an alternate response object is returned by an event, give it to
  the application instance.
Merge pull request #4847 branch 'hotfix/4847'
Forward #4847

Conflicts:
	library/Zend/Version/Version.php
Merge pull request #4846 from levofski/multicheckbox_inarray

DisableInArrayValidator for Multicheckbox
Merge branch 'feature/4846' into develop

Close #4846
add additional property with attribute type text
test input with only type configured is not created with an input filter with property required true
if inputfilter specification has only name, do not add to element specification
allow usage of validator and filter plugin managers in input filter factory if form manager injected
Merge pull request #4849
Merge pull request #4700 from Slamdunk/patch-2

PHP 5.5 can't fail anymore
Fix Zend\Log tests for 5.5.0

- Behavior change in PHP 5.5.0 means needing to change test case
  slightly. Basic assumptions are equivalent, fortunately.
Merge branch 'hotfix/4700'

Close #4700
Merge branch 'hotfix/4700' into develop

Forward port #4700
Allow FormElementErrors view helper to translate messages
Zend\Validator\File\MimeType warning with no params

The following code will throw 3 warnings:

```php
$mimeTypeValidator = new \Zend\Validator\File\MimeType();
```
```
Warning: array_key_exists() expects parameter 2 to be array, null given in \library\Zend\Validator
\File\MimeType.php on line 116
Warning: array_keys() expects parameter 1 to be array, null given in \library\Zend\Validator\File\MimeType.php on line 123
Warning: Invalid argument supplied for foreach() in \library\Zend\Validator\File\MimeType.php on line 123
```
removed trailing spaces
Add info in docblock about warnings

- Added a paragraph indicating inability to filter non-scalar values,
  and that a warning will be raised in such circumstances.
- Updated return annotations to indicate a "mixed" possibility.