Updated mac bootstrap script packages

* Installed MySQL
* Installed MongoDB
* Installed git-flow
* Removed PostgreSQL
* Removed the silver searcher
* Removed ImageMagick
* Removed ctags
* Removed tmux
* Removed reattach-to-user-namespace
* Removed qt
* Removed watch
* Removed gh
* Removed nodejs installation
* Removed suspenders
* Removed parity
* Removed foreman
* Removed rcm
Changed readme bootstrap url to this fork