Indented code.
Added copyright info.
Refined code. Updated app indicator images.
Move classes to module files.
Peewee model.
Updated gitignore.
Downloading works now.
Parse link, title and description.
Close store as soon as the DB access is finished.
Update menu with new image title; notification with the image.
Deb v0.2.
Updated README .
Updated README .
Corrected mail address.
Added more sites. Fixed bugs found during adding sites.
Create dest folder if it doesn't exist.
Added manual of installing DEB.
Schedule images to show based on the recent downloading history.
Updated schedule algorithm.
Merge branch 'feature/queue' into develop