Optimize and compress all images and remove junk files

Size of this tutorial is little high !
Why you commit all .zip files in all step folder ?!

In my country with 1mb/s internet speed it very difficult to clone or download this repo.
I remove all zip files and optimize images and save 110MG !!!
Please allow me to move all lib and images to separate folder at root of ph-pages
And remove all angular-notused.js files
Please allow me to use libs/*.min.js files only and remove all not useful and heavy files
It will be saved another ~100mg 
Thank you.