Molovo Revolver Versions Save

Clear the line before writing to prevent overflow

Fixes a syntax error which stopper revolver working in ZSH 5.0

Fixes the broken demo command

• Add additional spinner styles, selectable with --style option
• Add demo command, which demonstrates each of the included styles
• Better ZSH 5.0 support
• A few tweaks to prevent the revolver process from being orphaned

• Add --help option
• Add completion file

First Release