Minifying your clientside code is a best practice. Minification performs a variety of different code optimizations to scripts or css, such as removing unnecessary white space and comments and shortening variable names to one character. This last thing can be problem with Angular if you do it right.
MVC5 came with some really nice stuff. In this blog post I’ll dig into the authentication with external logins as Microsoft calls them. We call them often social logins. The way this is done is quite different than in MVC4. Where MVC4 depended on webmatrix MVC5 makes use of OWIN security