Merge pull request #256 from inthepoche/dev

merge 1.0.0
Update CONTRIBUTING.md
Merge pull request #289 from inthepoche/dev

1.1.0
Add a autoclose parameters. When we use sharing method in plugins like the tiny tiny rss one or the firefox plugins we can passe the autoclose=true parameters that close the popup.
Merge branch 'master' into dev