Login Command now looks for parameters

[LateralSolutions]

Allows user to invoke from PowerShell easier

[tt]

Please reformat with tabs and be sure to also set Git's core.autocrlf to true so line endings are kept consistent too.

[LateralSolutions]

there's also a return 0 and return 1 as exit codes, this helps with PowerShell extensions that look for non zero return codes to raise expections

[runesoerensen]

It appears the formatting is still off - https://github.com/appharbor/appharbor-cli/pull/9/files should only reflect the actual changes to the files