WIP: modified:   nsls2/recip.py to add q values for each pixel from hkl values
ENH: modified:   nsls2/recip.py
ENH:  modified:   nsls2/recip.py
DOC: added documention for HKL to q
ENH: changes according to comments
ENH: nsls2/recip.py
ENH: changed according to comments
Merge pull request #172 from sameera2004/hkl_to_q

HKL to Q