2.7.1 release
change versions to 2.7.0 (release)
Prepare version 2.6.0.
Prepare version 2.6.0-RC.
Prepare version 3.0.0-alpha2.
Prepare version 3.0.0-alpha1.
Prepare release 2.5.1.
build.gradle: version 2.5.0 (release), add objectboxVersionNumber and… … objectboxVersionRelease to simplify release process
Merge branch 'v2.4.1'
Merge branch 'v2.4.0'