Bootstrap color selector as an Angular Directive

For a SharePoint Hosted App I needed a simple & user friendly Angular & Bootstrap based color selector directive. This blog post describes the final solution and shows how easy it is to move JavaScript based features to an Angular directive. Additionally there is a link to a plunkr so you can check the code online.

Microfeed not working on Team Site - Internal error code 54

I installed a SharePoint 2013 farm using AutoSPInstaller. As usually the installation worked well. I then created a new Team Site site collection. The Newsfeed WebPart came up with an error message:

The operation failed because an internal error occurred. Internal type name: Microsoft.Office.Server.Microfeed.MicrofeedException. Internal error code: 54. Contact your system administrator for help in resolving this problem.