Automatic Updates from GitHub Release Page

Created by: SecUpwN

Good evening, everyone!

Through our internal discussions we figured it would be great if AIMSICD could automatically check and fetch the latest WIP-Release when pressing a button in the upper right corner. Hitting it prompts:

a) "A new version XXXX of this app is available. Do you want to download?" b) "Congrats! You're running the latest version XXXX."

If a new version exists, AIMSICD should display the the name of the WIP-Release and ask if it shall be downloaded. Not sure if we can query the MD5 and SHA1 from GitHub to check if it matches. Also, automatic update checks should be possible to enable within the Preferences (default: off).

To avoid a huge discussion here: We are still not really convinced about using F-Droid as discussed in #3 (closed) since publishing non-working highly alpha Apps there is probably not the best idea.