QA:Testcase gnome-shell extensions remove

Setup

1. Boot into a GNOME session with GNOME Shell
2. Make sure you have gnome-tweak-tool installed using gnome-packagekit or via running: yum install gnome-tweak-tool
3. Have several extensions installed as in previous case.

How to test

1. With gpk-application (Applications->System tools->Add/Remove Software) or by executing "yum remove gnome-shell-extension-*" remove all extensions you've installed using package manager.
2. Press Alt-F2 and type 'r' to restart gnome-shell.
3. Run gnome-tweak-tool (Accessories->Advanced Settings) and look into Shell Extensions tab to see the installed extensions
4. Using your favourite browser navigate into https://extensions.gnome.org
5. Follow the Installed extensions menu link to see the list of extensions you currently have installed on your system.
6. Using the circled cross button, item-by-item remove all extensions. Afterwards see Shell Extensions tab of gnome-tweak-tool again.

Expected Results

1. All extensions should be out after the package removal. In gnome-tweak-tool you should see only extensions installed from extensions.gnome.org.
2. After point five, you should see the same extensions as in gnome-tweak-tool before. All should be removable - have the remove button associated with them.
3. At the end, no extensions should be listed neither in tweak tool nor extensions.gnome.org