Replacing random tabs with whitespaces in .config transform files.

This is a very important commit, prevents seizures with people with OCD :)

Also, prevents this, when pulling the Razor view engine from NuGet: 
![image](https://f.cloud.github.com/assets/601206/1758249/9453b4cc-668c-11e3-8933-b981a0e04888.png)