Change default command style to not use dashes
Add deprecation warnings.
Add some error checking for `antigen` sugar
Return with error, when no sub-command given.
Merge branch 'patch-1' of github.com:GUIpsp/antigen
80|
Removed shebang line and added meta comments. Fix #56.
Add `Antigen:` prefix to error messages.

When in a script, it can be very hard to tell where an error is coming from,
just from the message. Adding this prefix should help a bit, by providing some
context to the error.
80| and refactor `! -z` to `-n`.
Merge pull request #51 from jmatth. Fix #51.
Suggest tabbing contents of heredoc

Conflicts:
	README.mkd
Add a note to README about heredoc's indentation.
Add tests for indented heredoc to bundles command.
Merge remote-tracking branch 'sheerun-fork/feature/command-style'

Conflicts:
	README.mkd

Conflict mainly due to the other pull request introducing the `antigen use`
command.
Group and improve the docs for `antigen use` command.
Added link to contributing wiki page.
Added note on checking a plugin source before adding.
Merge remote-tracking branch 'upstream/master'