Move ext-mysqlnd to suggested for now (even though it is actually required) (#9229)

* Move ext-mysqlnd to suggested for now (even though it is actually required)
Remove extra dependency version locks, they are more trouble than they are worth.  I just run composer with php 5.6 when updating composer.lock.
Update dependencies.

* Trigger full build on composer updates

* Update composer.json

composer.json

@@ -21,7 +21,6 @@
     ],
     "require": {
         "php": ">=5.6.4",
-        "ext-mysqlnd": "*",
         "ext-pdo": "*",
         "ext-pcre": "*",
         "ext-curl": "*",
@@ -49,17 +48,7 @@
         "oriceon/toastr-5-laravel": "dev-master",
         "wpb/string-blade-compiler": "3.4.x-dev",
         "fico7489/laravel-pivot": "*",
-        "fideloper/proxy": "^4.0",
-
-        "vlucas/phpdotenv": "2.4.0",
-        "doctrine/inflector": "1.1.*",
-        "symfony/event-dispatcher": "3.*",
-        "symfony/css-selector": "3.*",
-        "doctrine/instantiator": "1.0.*",
-        "phpdocumentor/reflection-docblock": "3.*",
-        "phpunit/php-token-stream": "1.*",
-        "myclabs/deep-copy": "1.7.*",
-        "nikic/php-parser": "v3.1.*"
+        "fideloper/proxy": "^4.0"
     },
     "require-dev": {
         "squizlabs/php_codesniffer": "^2.9.1",
@@ -74,7 +63,8 @@
     },
     "suggest": {
         "ext-memcached": "Required if you utilize distributed polling",
-        "ext-posix": "Allows for additional validation tests"
+        "ext-posix": "Allows for additional validation tests",
+        "ext-mysqlnd": "*"
     },
     "autoload": {
         "psr-4": {

scripts/pre-commit.php

@@ -34,6 +34,10 @@ foreach ($changed_files as $file) {
         $map['bash']++;
     }
 
+    if ($file == 'composer.lock') {
+        $map['php']++; // cause full tests to run
+    }
+
     // check if os owned file or generic php file
     if (!empty($os_name = os_from_file($file))) {
         $map['os'][] = $os_name;