Coding Standards: Upgrade WPCS to 1.0.0

WPCS 1.0.0 includes a bunch of new auto-fixers, which drops the number of coding standards issues across WordPress significantly. Prior to running the auto-fixers, there were 15,312 issues detected. With this commit, we now drop to 4,769 issues.

This change includes three notable additions:
- Multiline function calls must now put each parameter on a new line.
- Auto-formatting files is now part of the `grunt precommit` script. 
- Auto-fixable coding standards issues will now cause Travis failures.

Fixes #44600.



git-svn-id: https://develop.svn.wordpress.org/trunk@43571 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/user/countUserPosts.php

@@ -18,22 +18,27 @@ class Tests_User_CountUserPosts extends WP_UnitTestCase {
 		);
 
 		self::$post_ids = $factory->post->create_many(
-			4, array(
+			4,
+			array(
 				'post_author' => self::$user_id,
 				'post_type'   => 'post',
 			)
 		);
 		self::$post_ids = array_merge(
-			self::$post_ids, $factory->post->create_many(
-				3, array(
+			self::$post_ids,
+			$factory->post->create_many(
+				3,
+				array(
 					'post_author' => self::$user_id,
 					'post_type'   => 'wptests_pt',
 				)
 			)
 		);
 		self::$post_ids = array_merge(
-			self::$post_ids, $factory->post->create_many(
-				2, array(
+			self::$post_ids,
+			$factory->post->create_many(
+				2,
+				array(
 					'post_author' => 12345,
 					'post_type'   => 'wptests_pt',
 				)