Translate ":/Charts.XML" during import

... translate the names and units for Metrics and PMmetrics to the
locale of GC-preferences
... translate ONLY once if the default-chart is imported
Translate ":/-Layout.XML" metrics charts

... second part: 2nd part ("-Layout.XML") translation
... "Mapping Table generation" provided as a new LTMTool routine (to
avoid duplicate code)
... mapping to HomeWindow::restoreState(bool useDefault) for the LTM
Window type charts added
... metricUnit considered in getting the mapping texts for "unit"
ColumnChooser - Drag&Drop problem with special Characters and QT 4.6.8

... the .toUTF8() conversion used with QT5.3.x to handle special
characters (e.g. german Umlaute) in column chooser does not work for QT
4.8.6 (at least not for the Windows) - as a result (Drag&Drop from those
fields into Columns or Search Field is not working)
... following the approach other places, changed approach to
"serialization" of the info for "Drag&Drop" - so work independent on any
QT conversions (which seem to depend on other conditions - change over
time)
Merge pull request #981 from Joern-R/pull4

ColumnChooser - Drag&Drop problem with special Characters and QT 4.6.8
Merge pull request #979 from Joern-R/pull3

Translate ":/Charts.XML" during import
Translation Enablement

... some last tr()s
... translation for new "Chart Titles"
... translation for new "Default Charts"
Merge pull request #982 from Joern-R/pull5

Translation Enablement
Translation DE

... small adjustments
Merge pull request #983 from Joern-R/pull1

Translation DE
AllPlot Calibration Markers Tweak

.. only show them on power plots

.. don't show text

.. make them /really/ faint

NOTE: This is because crank based powermeters (e.g. SRM) will send
      calibration messages every time you freewheel for 3 secs or more and
      modern headunits (e.g. Nav2Coach) will record and adopt them.

      As you can guess, I have an N2C + SRMs and get > 20 or 30 calibrations
     every ride with the latest N2C firmware, so this one is for me.
Merge remote-tracking branch 'upstream/master'
Add FixElevation

Only works on short rides atm (<20 miles ish)