Switch base script to use the rbenv dispatching

Start working on #7
Comment out hook activation

Not sure what hooks are in rbenv...
Add version file from rbenv
Add help file from rbenv
Add commands file from rbenv
Add completions file from rbenv
Fancify version message
Move basic init to file

Working on #7
Move basic fetch to file

Working on #7
Move basic add to file

Working on #7
Add another comment blank line

add, fetch and init were all missing them originally
Move basic status to file

Working on #7