Setting executable bit on hooks
Improved bootstrap and configure scripts

Better error handling for yum and apt-get, quiet runs for same, better
message display/output when using Vagrant, creation of "firstrun" state
file and check for it prior to bootstrap, etc.
Create README.md
Update README.md

Fixing bolding.
Update README.md

GFM newline->newline is a lie, added 2 spaces to make things work as per original Markdown