Close after saving created ticket

[Marwe]

A new ticket is not closed after creation, and no sign of success indication given.
If you press save multiple times, then you create multiple new issues with the same content.
Close edit view after successful submission would be perfect and all that is needed.

To reproduce:

• create a ticket
• save
• save again
• leave via "back"
• result: find two new issues created (you may need to reload)

[Marwe]

Currently open pull request #233 seems to tackle the issue.