bug #18909 Fixed singular of committee (peterrehm)

This PR was squashed before being merged into the 3.1 branch (closes #18909).

Discussion
----------

Fixed singular of committee

| Q             | A
| ------------- | ---
| Branch?       | 3.1?
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #18872, #18748
| License       | MIT
| Doc PR        | -

As in SF 3.1 the StringUtil has been moved to a new Component, I am proposing this for 3.1.
I can easily provide the same in an additional PR against the 2.3? branch.

Commits
-------

b5e1f24 Fixed singular of committee

src/Symfony/Component/Inflector/Inflector.php

@@ -26,7 +26,6 @@ final class Inflector
      * @var array
      *
      * @see http://english-zone.com/spelling/plurals.html
-     * @see http://www.scribd.com/doc/3271143/List-of-100-Irregular-Plural-Nouns-in-English
      */
     private static $pluralMap = array(
         // First entry: plural suffix, reversed
@@ -71,6 +70,15 @@ final class Inflector
         // movies (movie)
         array('seivom', 6, true, true, 'movie'),
 
+        // feet (foot)
+        array('teef', 4, true, true, 'foot'),
+
+        // geese (goose)
+        array('eseeg', 5, true, true, 'goose'),
+
+        // teeth (tooth)
+        array('hteet', 5, true, true, 'tooth'),
+
         // news (news)
         array('swen', 4, true, true, 'news'),
 
@@ -218,11 +226,6 @@ final class Inflector
             }
         }
 
-        // Convert teeth to tooth, feet to foot
-        if (false !== ($pos = strpos($plural, 'ee')) && strlen($plural) > 3 && 'feedback' !== $plural) {
-            return substr_replace($plural, 'oo', $pos, 2);
-        }
-
         // Assume that plural and singular is identical
         return $plural;
     }

src/Symfony/Component/Inflector/Tests/InflectorTest.php

@@ -53,6 +53,7 @@ class InflectorTest extends \PHPUnit_Framework_TestCase
             array('children', 'child'),
             array('circuses', array('circus', 'circuse', 'circusis')),
             array('cliffs', 'cliff'),
+            array('committee', 'committee'),
             array('crises', array('cris', 'crise', 'crisis')),
             array('criteria', array('criterion', 'criterium')),
             array('cups', 'cup'),