BLD: bring back build_ext warning message cython is missing #2439
TST:  Don't segfault when categorical groupby differs in length from series, GH3011
BUG: add length check on categorical grouper, GH3011
TST: df.from_records should accept values deriving from ABC collection.Mapping
ENH: df.from_records should accept values deriving from ABC collection.Mapping, GH3000
TST: add tests for Period().to_timestamp(tz=foo), GH2877
ENH/BUG: add tz argument to to_timestamp of Period, GH2877
TST: add bounds-checking preamble to groupby_X cython code
ENH: add bounds-checking preamble to groupby_X cython code
TST: Enforce grouper=f() result has len(labels) == len(data) GH3035
BUG: Enforce grouper=f() result has len(labels) == len(data) GH3035
DOC: Update v0.11.0.txt
ENH: Allow setitem in a frame where only mixed numerics are present (e.g. int and float) GH 3037

CLN: minor change in _consolidate_inplace (check if consolidated first, so that we can cheaply call this)
ENH: improve performance of df.to_csv GH3054
BUG: Handle concat of series with same name, GH2972
Merge pull request #3050 from jreback/numerics_3037

ENH: Allow setitem in a frame where only mixed numerics are present
Merge pull request #2860 from y-p/GH2439

BLD: bring back build_ext warning message cython is missing #2439
Merge pull request #3005 from y-p/GH3000

 df.from_records should accept values deriving from ABC collections.Mapping #3000
Merge pull request #2991 from y-p/GH2877

ENH/BUG: add tz argument to to_timestamp of Period GH2877
ENH: to_csv using masking to simplify dtype processing