volume.py: deal with the situation where no data was extracted from projection
Merge branch 'master' of foxtrot.danse.us:dv/nslice
Merge branch 'master' of foxtrot.danse.us:dv/nslice
Merge branch 'master' of foxtrot.danse.us:dv/nslice
nslice/io/__init__.py: fixed a bug
nslice.slice: deal with situation where there is no sample
nslice/spe2hkle: moved method "xtalori2mat" to nslice/xtalori
lice/XtalOrientation.py: added method hkl2cartesian_mat
added: nslice/Scan_ProjectionsOnly.py
Merge branch 'master' of foxtrot.danse.us:git/nslice
added examples/Si/i.xtal_ori
nslice/xtalori.py: added method "Eresidual"
added tests/nslice/test_xtalori.py