ENH: add DataFrame.eval method and tests for local syntax
BUG: fix Term expression printing if the expression is not a string (e.g. an ndarray)

BUG: _ensure_term will now only coerce to a Term if its maybe_expression
     so will not coerce coordinate looking (e.g. list of integers or ndarray)
CLN: translate in for pytables
ENH: add in, not in, and string/list query support
CLN: add an R with/subset comparison script
DOC: pytables v0.13.0 changes
DOC/TST: raise a ValueError on an invalid pytables query expression (rather than a NameError)
ENH: show how many orders of magnitude larger the unaligned object is
DOC/TST: jreback's: add doc compat and test for term compat
TST: test the alignment warning message