tmgmt_nativy 7.x-1.0-alpha2

This is the synchronized second alpha relase for the TMGMT Nativy Translator. The most important new feature is the ability to reject translations with a comment and request a new version.

Changes since 7.x-1.0-alpha1:

• by Berdir: Removed execute permissions for files.
• #1594416 by corvus_ch, Berdir: Added reject functionality for test and nativy translator.
• #1482830 by Berdir, corvus_ch: Updated nativy translator to new API.
• #1491550: Merge the translation property into the data property on the job item entity and clean up of entity and node source tests.