auto load data folder
Major reworking of gain re-refinement code to allow single-point scaling.
Not yet working.
Fixed bad handling of non-ASCII characters in sample and user names.
Merge branch 'master' of http://github.com/Gumtree/Echidna_scripts
Significant progress on pointwise overlap correction; using imgCIF axis conventions.
Removed debugging messages
Improved d-spacing treatment; added imgCIF axes; fiddled with treatment
of regain correction.

Conflicts:
	EchidnaReductionUI.py
	Reduction/reduction.py
Replaced some stitching with pythonic expressions. Now works correctly
for previously manipulated datasets.

Conflicts:
	Reduction/reduction.py
Fixed incorrect copy. Still need to speed up.

Conflicts:
	Reduction/reduction.py
Finished removing point-based correction from data reduction.
Merge branch 'beamline-head'

Conflicts:
	EchidnaReductionUI.py
	Internal/Initialise.py
	Reduction/AddCifMetadata.py
	Reduction/reduction.py
Removed leftover unmerged sections from previous merge; improved
GSAS FXYE handling so that 'old' GSAS is happy.  It seems that old
GSAS reads the 'start' and 'step' values, even though it doesn't
need them.