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/meta.php

@@ -144,7 +144,8 @@ class Tests_Meta extends WP_UnitTestCase {
 
 		// Test EXISTS and NOT EXISTS together, no users should be found
 		$this->assertEquals(
-			0, count(
+			0,
+			count(
 				get_users(
 					array(
 						'meta_query' => array(
@@ -163,7 +164,8 @@ class Tests_Meta extends WP_UnitTestCase {
 		);
 
 		$this->assertEquals(
-			2, count(
+			2,
+			count(
 				get_users(
 					array(
 						'meta_query' => array(
@@ -180,7 +182,8 @@ class Tests_Meta extends WP_UnitTestCase {
 		delete_metadata( 'user', $this->author->ID, 'meta_key' );
 
 		$this->assertEquals(
-			2, count(
+			2,
+			count(
 				get_users(
 					array(
 						'meta_query' => array(