Update apk names and take out not needed ones

[mariobehling]

The following APKs are not essential. Please take them out of the generation:

• badge-magic-master-app-release-unaligned.apk
• badge-magic-dev-app-release-unsigned.apk

Further take out the word "app" from all APK names, e.g.
badge-magic-dev-debug.apk instead of badge-magic-dev-app-debug.apk.

[adityastic]

Done

[iamareebjamal]

Done where?

[adityastic]

@iamareebjamal done as in, will be done