Fix 386 build

README: Bump version to v0.4

Merge pull request pressly#83 from pressly/debug

CLI: Implement --debug and --disable-prefix options

Fix run_once backward compatibility on v0.3

Bump to 0.2.2

Merge pull request pressly#15 from pressly/only

Implement `--only regexp` cmd option to filter hosts

Add cmd option to show sup version

Merge pull request pressly#12 from pressly/tabwriter

Use tabwriter & refactor usage