Clickable URLs in output window

If Git writes URLs to stdout, they should be displayed as hyperlinks in the output window of SmartGit to open them in the default browser with a simple click.

This is especially useful when pushing new branches to remotes which response with an URL to open a new merge request, like GitLab does. Then you can just push a branch, click on the URL in the output window, and your merge request is opened in the browser.

Or as a second example, some remotes response with an URL to the new location of the repository if a repository was moved to another location.