Double click on .ep doc does not load the document for editing

[Google Code Exporter]

What steps will reproduce the problem?
1. Windows 7, file system double click on a doc.ep document
2. Evolus pencil will be loaded but showing an "untitled page" (not doc.ep as 
expected)
3. To load the document you must click on "Open existing document"

What is the expected output? What do you see instead?
By doubleclicking on a .ep doc i expect the doc to be load in evoluspencil

What version of the product are you using? On what operating system?
EP Version 2.0.5 on Windows 7

Please provide any additional information below.

Original issue reported on code.google.com by [e-mail] on 10 Mar 2015 at 11:31