Added composer related Magento 2 files to .gitignore file

.gitignore

@@ -1,3 +1,14 @@
+/.modman/
+/app/*
+/bin/*
+/dev/*
+/bin/*
+/lib/*
+/phpserver/*
+/setup/*
+/update/*
+/.github/*
+
 /.buildpath
 /.cache
 /.metadata
@@ -36,33 +47,58 @@ atlassian*
 /pub/media/*.*
 !/pub/media/.htaccess
 /pub/media/attribute/*
-!/pub/media/attribute/.htaccess
+#!/pub/media/attribute/.htaccess
 /pub/media/analytics/*
 /pub/media/catalog/*
-!/pub/media/catalog/.htaccess
+#!/pub/media/catalog/.htaccess
 /pub/media/customer/*
-!/pub/media/customer/.htaccess
+#!/pub/media/customer/.htaccess
 /pub/media/downloadable/*
-!/pub/media/downloadable/.htaccess
+#!/pub/media/downloadable/.htaccess
 /pub/media/favicon/*
 /pub/media/import/*
-!/pub/media/import/.htaccess
+#!/pub/media/import/.htaccess
 /pub/media/logo/*
 /pub/media/theme/*
 /pub/media/theme_customization/*
-!/pub/media/theme_customization/.htaccess
+#!/pub/media/theme_customization/.htaccess
 /pub/media/wysiwyg/*
-!/pub/media/wysiwyg/.htaccess
+#!/pub/media/wysiwyg/.htaccess
 /pub/media/tmp/*
-!/pub/media/tmp/.htaccess
+#!/pub/media/tmp/.htaccess
 /pub/media/captcha/*
 /pub/static/*
 !/pub/static/.htaccess
 
 /var/*
-!/var/.htaccess
+#!/var/.htaccess
 /vendor/*
-!/vendor/.htaccess
+#!/vendor/.htaccess
 /generated/*
-!/generated/.htaccess
+#!/generated/.htaccess
 .DS_Store
+
+/pub/.user.ini
+/pub/cron.php
+/pub/get.php
+/pub/health_check.php
+/pub/index.php
+/pub/static.php
+/pub/opt/magento/var/resource_config.json
+/pub/errors/*
+/.htaccess
+/.htaccess.sample
+/.php_cs.dist
+/.travis.yml
+/.user.ini
+/auth.json.sample
+/CHANGELOG.md
+/COPYING.txt
+/grunt-config.json.sample
+/Gruntfile.js.sample
+/index.php
+/LICENSE.txt
+/LICENSE_AFL.txt
+/nginx.conf.sample
+/package.json.sample
+/php.ini.sample