Removed Crashlytics and references to maven.io

[samtinel]

This PR removes Crashlytics and reference to maven.io. This means it is buildable by F-Droid. To be included, metadata has to be added, see #17 .

[lloydtorres]

Thanks so much for digging into this!

Per the commit that implemented Crashlytics, you'll also need to remove the app/fabric.properties file and the io.fabric.ApiKey metadata tag from the manifest. Would you mind updating your pull request with those changes?

Also, would you like to be added to the contributors list? If so, what name would you prefer for that? I'll make a separate commit to add you in once the pull request is merged in.

[samtinel]

updated the PR with the new changes, but please do not merge yet, tomorrow I will test more thoroughly

Also, would you like to be added to the contributors list?

yes, thanks! use "Samtinel" please

[samtinel]

It currently doesn't build for me, looks like gradle. will report back.
Could not initialize class org.codehaus.groovy.runtime.InvokerHelper

[samtinel]

Ah, interesting. Apparently Gradle has to be >= 6.3 to work with JDK 14. Downgrading java fixed that. Building works.

[samtinel]

It runs also fine through the smoke test. What I wonder is if in the settings the switch "send crash reports" also needs removal. A first look didn't really tell me what SETTING_CRASHREPORT does.
Will dig into it in the following days.

[lloydtorres]

Good catch, definitely get rid of that switch while you're at it.

[samtinel]

Removed the toggle and its resources, as well as the mention of CrashLytics in the readme. It compiles and passes the smoke test.
So in my eyes this is ready to merge, and then the last hurdle is #17. After that maybe a minor version bump?

[lloydtorres]

This pull request LGTM, thanks so much for doing this!

We can handle blocking changes related to F-Droid in #17.