BUG: fix panel bin-grouping aggregation with custom functions. close #2537
BUG: remove pdb
CLN: remove argument and deprecation warning from internal function
CLN: remove redundant assignment
CLN: modify test_perf to allow import as a module
ENH: perf_HEAD cleanups and enhancements

- add functions to collect and prepre results from travis
- add more metadata to json blob: hostname, utc datetime, number of jobs on host
- exit with error exit code if exceptions were caught (make travis job fail)
- change gist results file extension to .json
BLD:  add pytables as dep in VBENCH travis build
BUG: allow perf_HEAD to run off travis
BUG: ordering in returned data on an index axis if had a selection filter
     e.g. had > 61 fields that were specified in a Term (weird but true)
BUG: more memory usage fixes
BUG: don't fail in PeriodIndex.format when passing formatter. close #2549
DOC: add some licenses, remove b1 qualifier
DOC: wide frame repr examples in dsintro #2477
DOC: rolling window examples #2477
RLS: Version 0.10.0 final
Update default fillna method in the docstring
BUG: fixed DataFrame.to_records() error with datetime64, #1908
BUG: tweak for DataFrame.to_records datetimeindex fix #1908
Merge pull request #2558 from herrfz/patch-2

Update default fillna method in the docstring
BLD: Accommodate changes in latest travis-ci image update