Added:
- New analysis block called AM1DKSpaceCalculator.  The purpose is to
have the k-space value from a corresponding energy position as a column
inside scans without having to have the calculation done in a PV.  It
has yet to be tested and it also hasn't been added to
VESPERSXASScanActionController.
Altered:
- AMEnergyToKSpaceCaclulator to be more robust with energies below the
edge energy.  It was possible to get nan's whereas it now sets it to 0
like it should.
- Made small tweaks to AM1DKSpaceCalculatorAB and registered it in
AMDatamanAppController.

Added:
- AM1DKSpaceCalculatorAB to VESPERSXASScanActionController.  It required
the addition of the energy feedback as a detector (it is now duplicated,
which is unfortunate, but oh well).

Removed:
- The k-space control from VESPERSBeamline as a separate control and
detector.  It could probably be removed from VESPERSMonochomator now
too.
Merge branch 'Issue613'