coder 7.x-2.3

Changes since 7.x-2.2:

• Added composer file.
• Added PHPUnit test support for all good files.
• Added test case for rules referenced from the generic coding standard.
• Added example unit test for file doc blocks.
• Create phpunit test for all bad files.
• Fixed function signature of unit test files.
• Added Travis CI config file.
• Fixed PHPCS coding standards.
• Fixed volatile PHP open tag in bad.php.
• Make sure that no folders are used from the directory iterator.
• Improved README to explain PHPUnit execution.
• Also check the line length in *.md text files.
• #2270551 : Allow $this as data type in @return docs.
• #2203627 by TravisCarden: Fixed "Implements hook_foo() for some-template.file" sniff doesn't support Twig template names.
• #2333251 by howto: Use UTF-8 as standard encoding for files.
• #2374199 by andrewsuth: Added sdpm() to disallowed functions.
• Added composer.lock to pin down dependencies.
• #2163269 by Darren Oh: Coder Review - Allow {@inheritdoc} same as we do in Coder Sniffer.
• #1880186 by hargobind, rsmylski: PHP 5.2 legacy compatibility: Parse error: syntax error, unexpected T_FUNCTION.
• #2209695 by nidhi_mehta, rajeev_drupal: Added configure links to info files.
• Removed files without classes/interfaces from info files.
• #2216889 by NerOcrO: Removed drush translation of example values.
• #2338673 by JulienD: Remove unnecessary files[] from .info file,