Update Translation DE

... translation DE update (based on RC2 commits) - but not included in
RC2
Merge pull request #969 from Joern-R/pull1

Update Translation DE
Added error checking to Twitter OAuth

.. but cannot test, so please check it !
Fix SEGV on Y-axis Widget in Trend Chart

Fixes #970
Translation Enablement / Corrections

... some more tr() (LTMTool, LTMSetting)
... for Lx/Hx in Time and unit "seconds" translation not working in
constructor, therefore moved to "initialization" for both HR and Power
(similar to the translated metric names) (HrTimeInZone, TimeInZone)
... in RC2 - Windows (name with "umlaut") not displayed in official
build (adjusted to be handled like the one name with umlauts already
defined)
Merge pull request #971 from Joern-R/pull2

Translation Enablement / Corrections
Unzoom fails on CP Plot

Fixes #972
Distinguish Kickr ANT+ Power Device

.. just set a bool on the channel, but will need to setup
   a separate channel for commands in executive classes
Kickr Constants
Update Translation DE

... update of file (LUPDATE) / sync with sources
Merge pull request #977 from Joern-R/pull1

Update Translation DE
Merge remote-tracking branch 'upstream/master'