Elle Microstructural Modelling SVN Code

Change unode ordering to convention unode 0 is at (0,0) cartesian (base
left). Previously, unode 0 was given position (0,1), pixel convention.
elle2ebsd assumed unode 0 at (0,0)

Imakefile:
quick and dirty fix for build problem

canvas.cc wxstart.cc:
Changes so flynn numbers are centred on flynns when unit cell not 1x1
Comments on how we may change and simplify for pure shear (not 1x1)
cells.

plotaxes.elle.cc:
Simplify calculation

plotaxes.elle.cc:
simplify calculation

tidy.elle.cc:
remove debugging stuff

ppm2elle.elle.cc:
Changes to allow reading of caxis data from ppm files

fft2elle.cc:
minor changes: No need to get node position again in this loop.
If wrapping (commented out code) then get unode position relative to node

elle2ebsd.cc
changed file extension of output file to ".txt" (from ".hkl")
Easier for importing into hkl software

image.h added for declaration of keywords and fns used in reading ppm
files with caxis data

convert.h general.cc
Fns GeoToMath and MathToGeo (currently same code). Used for changing
between math convention and geo convention for orientation

file.h image.cc image.h
Changes and functions for reading CAxis data from ppm files

runopts.cc
declaration of runopts.h moved for some reason.