v1.2.3 - Device binding improvements

[mskg]

• Fixed error in german translation that prevented variable replacements
• Dynamic and permanent rebinding of devices
• Reworked german translations to be informal, resolves #141, resolves #74
• De-/Activation of heating-plans did not update overview page, fixes #140

[codeclimate[bot]]

Code Climate has analyzed commit 4f74c4ed and detected 3 issues on this pull request.

Here's the issue category breakdown:

Category	Count
Complexity	1
Duplication	2

View more on Code Climate.