DOC: chenged varible names to lower case  modified:   nsls2/recip.py  nsls2/tests/test_recip.py
ENH: modifed nsls2/tests/test_recip.py
ENH: modifed nsls2/core.py
ENH: Merge branch 'Reciprocal_Space' of github.com:sameera2004/NSLS2 into Reciprocal_Space

* 'Reciprocal_Space' of github.com:sameera2004/NSLS2:
  DOC: Minor corrections for PEP8 and spelling errors

Conflicts:
	nsls2/core.py
	nsls2/recip.py