Update versions automatically when autoupdate is set to true.
Save the configuration with the new format when the deprecated one is detected.
Save the new config after assigning the credentials.
Make sure we load the deprecated configuration and override it with the new one.
Merge pull request #130 from jingweno/autoupdate

Autoupdate by configuration.
Add autoupdate setting to README
Add link to available setting
Quote path
Make it explicit that multiple credentials are allowed
Merge pull request #131 from jingweno/update_autoupdate_in_readme

Add autoupdate setting to README
Bump version to v1.0.0
Bump homebrew-gh submodule to 1.0.0
Bump homebrew-gh which fixes sha and download path
Gramma issue in README
Update go-octokit.
Use the upload service in octokit.
Merge branch 'master' into gh_release

* master:
  Gramma issue in README
  Bump homebrew-gh which fixes sha and download path
  Bump homebrew-gh submodule to 1.0.0
  Bump version to v1.0.0
  Make it explicit that multiple credentials are allowed
  Quote path
  Add link to available setting
  Add autoupdate setting to README
  Make sure we load the deprecated configuration and override it with the new one.
  Save the new config after assigning the credentials.
  Save the configuration with the new format when the deprecated one is detected.
  Update versions automatically when autoupdate is set to true.
Add upload indicator.