Add PHPCSFixer config

.gitignore

@@ -8,3 +8,4 @@ phpunit.xml
 .vagrant
 Vagrantfile
 .idea
+.php_cs.cache

.php_cs

@@ -0,0 +1,18 @@
+<?php
+
+$finder = Symfony\CS\Finder\DefaultFinder::create()
+    ->files()
+    ->name('*.php')
+    ->exclude('Fixtures')
+    ->in(__DIR__.'/src')
+    ->in(__DIR__.'/tests')
+;
+
+return Symfony\CS\Config\Config::create()
+    ->setUsingCache(true)
+    ->level(Symfony\CS\FixerInterface::NONE_LEVEL)
+    ->fixers(array(
+        'psr0', 'encoding', 'short_tag', 'braces', 'elseif', 'eof_ending', 'function_declaration', 'indentation', 'line_after_namespace', 'linefeed', 'lowercase_constants', 'lowercase_keywords', 'multiple_use', 'php_closing_tag', 'trailing_spaces', 'visibility', 'duplicate_semicolon', 'extra_empty_lines', 'include', 'namespace_no_leading_whitespace', 'object_operator', 'operators_spaces', 'phpdoc_params', 'return', 'single_array_no_trailing_comma', 'spaces_cast', 'standardize_not_equal', 'ternary_spaces', 'unused_use', 'whitespacy_lines',
+    ))
+    ->finder($finder)
+;