BUG: fix BCD test failures after refactoring

Three tests of BCD were failing after recent changes:
1) BCD_writeBranded2DImage because of recent changes in
MakeBranded2DImage function.
2-3) BCD_outputLandmarksInACPCAlignedSpace and
BCD_outputLandmarksInInputSpace are failed because half of voxel shift
in mid_prim_inf landmarks.
I inspected the new results by Slicer, and all other landmarks are
placed at the right location. Also, half of voxel shift is acceptable
for the mid_prim_inf. This fiducial has uncertainty of 2-3 voxels.
Therefore, I replace the previous baselines with the new correct results
to fix the test failures.
Merge pull request #54 from aghayoor/master

BUG: Three test failures are fixed after recent changes to BCD