Return correct key code for delete/backspace on android.

[Foaly]

This fixes #1309.

[texus]

This is a good example of why even trivial fixes need to be tested. The API has to be 13 or higher or it won't compile. The ANDROID_API_MIN currently still has a default value of 9, where AKEYCODE_FORWARD_DEL apparently didn't exist yet. I think the minimum version can be increased without any issues, even API 13 (android 3.2) is more than 7 years old already.
I couldn't test the delete key, but at least I can confirm that the backspace key works correctly now.

[Foaly]

Funny somehow I had the gut feeling it would be a good idea to have this tested 😄
According to stats in the andoid dashboard the version 3.2 is not even listed anymore. Any significant user numbers don't start until 4.1.x. Unless anybody from the andoid devs (maybe @MarioLiebisch ) raises any concerns I will increase the API version.

Could you test the new version?

[MarioLiebisch]

Latest tools will no longer allow you to build anything under API 14, so I'd say it's save to just bump the minimum version to 14 now.

[Foaly]

14 it is then!
I've also updated the references in the android example that I could find. I hope I didn't miss anything else.

[texus]

Works without problems now. I found a keyboard with a delete key so I can confirm that both backspace and delete works.

[Foaly]

Thats awesome! Thank you very much for testing! I guess if @MarioLiebisch closes his review this can be merged :)

[MarioLiebisch]

Yeah, changes are fine, but not sure we should wait for #1350 with this. You'll basically need both changes to properly compile without this bug (and others).

[Foaly]

I don't really see how #1350 is dependent on this, so I think this is ready for merging now! :)

[eXpl0it3r]

Small conflict to resolve since the other Android bit has been merged. 🙂

[Foaly]

Ah I see it now :D Updated!

[eXpl0it3r]

Merged in 1862946