Improve grammar of "Equals" rule

docs/KeyValue.md

@@ -50,7 +50,7 @@ v::keyValue('password_confirmation', 'equals', 'password')->check($input);
 The above code may generate the message:
 
 ```
-password_confirmation must be equals "password"
+password_confirmation must equal "password"
 ```
 
 ## Changelog

library/Exceptions/EqualsException.php

@@ -15,10 +15,10 @@ class EqualsException extends ValidationException
 {
     public static $defaultTemplates = [
         self::MODE_DEFAULT => [
-            self::STANDARD => '{{name}} must be equals {{compareTo}}',
+            self::STANDARD => '{{name}} must equal {{compareTo}}',
         ],
         self::MODE_NEGATIVE => [
-            self::STANDARD => '{{name}} must not be equals {{compareTo}}',
+            self::STANDARD => '{{name}} must not equal {{compareTo}}',
         ],
     ];
 }

tests/integration/rules/equals_2.phpt

@@ -12,4 +12,4 @@ try {
 }
 ?>
 --EXPECTF--
-"test 1234" must be equals "test 123"
+"test 1234" must equal "test 123"

tests/integration/rules/equals_3.phpt

@@ -12,4 +12,4 @@ try {
 }
 ?>
 --EXPECTF--
-- "test 1234" must be equals "test 123"
+- "test 1234" must equal "test 123"

tests/integration/rules/equals_4.phpt

@@ -12,4 +12,4 @@ try {
 }
 ?>
 --EXPECTF--
-"test 123" must not be equals "test 123"
+"test 123" must not equal "test 123"

tests/integration/rules/equals_5.phpt

@@ -12,4 +12,4 @@ try {
 }
 ?>
 --EXPECTF--
-- "test 123" must not be equals "test 123"
+- "test 123" must not equal "test 123"

tests/integration/rules/keyValue_2.phpt

@@ -17,4 +17,4 @@ try {
 }
 ?>
 --EXPECTF--
-password must be equals "password_confirmation"
+password must equal "password_confirmation"

tests/unit/Rules/EqualsTest.php

@@ -42,7 +42,7 @@ class EqualsTest extends \PHPUnit_Framework_TestCase
 
     /**
      * @expectedException \Respect\Validation\Exceptions\EqualsException
-     * @expectedExceptionMessage "24" must be equals 42
+     * @expectedExceptionMessage "24" must equal 42
      */
     public function testShouldThrowTheProperExceptionWhenFailure()
     {

tests/unit/Rules/KeyValueTest.php

@@ -103,8 +103,8 @@ class KeyValueTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException \Respect\Validation\Exceptions\EqualsException
-     * @expectedExceptionMessage foo must be equals "bar"
+     * @expectedException Respect\Validation\Exceptions\EqualsException
+     * @expectedExceptionMessage foo must equal "bar"
      */
     public function testShouldCheckWhenDefinedValuesDoesNotMatch()
     {