Some more compareVersionStrings() tests

Change-Id: I5b9dc45352afd63dae4c3952d9647e6e3ec98ef4
Remove the dummy entry just used for testing

Change-Id: Ia2bc319fada2e21115629d29bca51f483a599c16
I don't know what I planned the 'Edit' button to do, drop it

Change-Id: I9944023d4cfd897acce8fd71296034ca32d8d136
Use right mnemonic_widget id

Change-Id: Ia5be89f17d8e63ad67a8d1dc811927dcdebbc0a9
Handle the 'New' and 'Delete' buttons

Change-Id: I1d5d6d70e9ac8d95b1189346fdab29ded39745bf