Add .gitignore from drupal_vm (as of commit 9ee46476c0fe05)

.gitignore

@@ -0,0 +1,26 @@
+web/robots.txt
+web/*.php
+web/web.config
+web/.*
+web/core
+web/modules
+web/profiles
+web/sites
+web/themes/contrib
+web/themes/custom/*/*.php
+web/themes/custom/*/*.js
+web/themes/custom/*/*.theme
+web/themes/custom/*/src
+web/
+vendor/
+
+# What you CAN commit:
+#  config
+#  web/themes/custom/*/templates
+#  web/themes/custom/*/images
+#  web/themes/custom/*/sass (or css, pick one)
+#  web/themes/custom/*/js
+#  web/themes/custom/*/*.yml
+
+## Ignore vagrant-created files.
+.vagrant