Merge pull request #54 from aghayoor/master

BUG: Three test failures are fixed after recent changes to BCD
ENH: Update ReferenceAtlas information.
ENH: Update SimpleITK to ITKv4 latest compatible version for double/single precision.
ENH: Add all tools to SEMTools required for AutoWorkup to run.
ENH: Improvements to the autoworkup scripts for BCD

Recent atlas based fixes for BCD have been incorporated into autoworkup.
ENH: Update for new POSTERIORS definitions.
WIP: convert double precision type transform to single type

WIP: redundant setPara and setFixPara are removed

WIP: not compiled, many changes done, 3more points remained

WIP: one more point remained

WIP: change the ref to pointer in precisionConverter

WIP: add changes to GenericTransformImage

WIP: not compiled. in/out precision not needed

WIP: transConverter compiles by some warnings

WIP: modify writeTransToDisk func in BRATranConvMakTesFile

WIP: in/outPrecision para is removed. 100 compiled

WIP: compiles but doesnt work

WIP: a segfault fixed,compiled,not tested
WIP: modify WritTransToDisk in all files
WIP: WritTransToDiskTemp is fixed in BRTransFiducials
WIP: fix wrtTransToDisk in all related files