Delete outdated build.rs

* Run release script

* Change dependencies to crates.io

Update node template to alpha.3

Added readme for generating your own substrate node template

Update to `40a16ef`

Update to `d1cd01c74`

In order to allow people to clone this template, GitHub requires all files be less than 10 mb.

This reverts commit 5cd3d42a.

This reverts commit cd271e09.