PERF: dataframe.from_records: read into list w/ itertools.islice when specifying nrows #6700
ENH: added nunique and value_counts functions to Index
Merge pull request #6734 from sinhrks/ind_nunique

ENH: added nunique function to Index
BLD: spring cleaning on Makefile
Merge branch '6700_dataframe_from_records_itertools' of https://github.com/westurner/pandas into westurner-6700_dataframe_from_records_itertools

Conflicts:
	doc/source/release.rst
	vb_suite/frame_methods.py
TST: dtype fix for test_base, from PR 6734)
Merge pull request #6784 from cpcloud/clean-up-makefile

BLD: spring cleaning on Makefile