CDash using platform.uname instead of UNIX only os.uname.
Lauching build with python executable to fix build execution error on windows machines.
Merge pull request #127 from jmargeta/platform_independent_compilation

Platform independent build
Incorporate the center of the volume when loading NII files which now can match trackvis and freesurfer meshes (under perfect conditions).

Perfect conditions are:
a) volume is not sheered
b) the trk file has a correct vox2ras transform or the coordinates are in RAS space
Some experiments with XIO and webworkers.
Remove obsolete check on the DOM element in X.interactor.
Only add a null check when assigning a dom element to an interactor.
Export several properties of X.texture and X.slice.
Reset flag for mousewheel observation.
Add the X.texture.grayscale flag to support 1 channel textures without overhead of mapping to RGBA.
Merge branch 'webworker_xp'
Avoid check on the dom element in X.interactor.
fix for parent element shifting
Merge pull request #129 from ahartung/master

progress bar parent element shifting fix
niftii parser was always setting orientation values to first row
bug fix: string conversion to number failure
Merge pull request #130 from eriksson/master

String conversion to number failure in DICOM parser
Merge branch 'master' into ijk2ras

Conflicts:
	io/parser.js
	io/parserNII.js