v1.19.0

• Added new search methods: findLinkedObjects(), findChildren(), findNestedQuery()
• Added support for authenticating users with a Microsoft or Windows account
• Added custom app settings API /v1/_settings
• Added PATCH support in custom API handlers
• Added app.isRootApp() convenience method
• Added setup endpoint for apps other than the root app /v1/_setup/{appid} (requires authentication)
• Added support for nested queries in Linker
• Added independent social sign in for apps with their own OAuth keys (reported by Sai Boorlagadda)
• Fixed FieldFilter - rewritten to better support field limiting with ?select=
• Fixed DB table not updated wnen app has the same read or write capacity set
• Fixed apps can overwrite themselves, fixed apps can be created/updated/delete in batch
• Fixed bugs causing app 404s, better error messages
• Deprecated the old populate() method in favor of setAnnotatedFields()