does not work with current beta:
```
d142c5534f4da4a7f0a1f52676716908f674ff9e06b87f7b153384b161296eaf /home/user/wspace/electrum/contrib/android/../../dist/Electrum-4.5.0.0-armeabi-v7a-release-unsigned.apk
+ mv dist/Electrum-4.5.0b0.0-armeabi-v7a-release-unsigned.apk dist/Electrum-4.5.0b0.0-armeabi-v7a-release.apk
mv: cannot stat 'dist/Electrum-4.5.0b0.0-armeabi-v7a-release-unsigned.apk': No such file or directory
```
