several general helpful functions
caf.m: shortcut for close all force
adding pca space functions
adding gammadst.m class for gamma function operations
Merge branch 'master' of https://github.com/adalca/mgt
correcting boundingBox.m
adding a few small usability functions
adding PCA functions
adding lognormpdf.m
adding vecNormLogSpace.m
adding support for bw to signed distance transform
adding wrapper for view3D.m