fixed a long-standing bug that allowed a nrrdProject of a 1-D array to go ahead, and cause a segfault.  Now it bails with an error message.  Bug reported most recently by Roni Choudhury
fixed a long-standing bug that allowed a nrrdProject of a 1-D array to go ahead, and cause a segfault.  Now it bails with an error message.  Bug reported most recently by Roni Choudhury

git-svn-id: 9e9401559e51101c165cdce4d49b411eb20436ed@3976 3d70eeeb-363e-0410-a505-8a46323a89f2

BRAINSia/teem,Slicer/teem,BRAINSia/teem,BRAINSia/teem,Slicer/teem,BRAINSia/teem,Slicer/teem,BRAINSia/teem,Slicer/teem,Slicer/teem