DOC: remove travis mentions in CONTRIBUTING.md. It just works now.
DOC: more CONTRIBUTING.md guidance
Added plyr and reshape comparisons
fixed indentation and import
TST: corner_case for read_csv with usecols GH5766
BUG: regression in read_csv parser handling of usecols GH5766

GH4406 fixed one bug and introduced (exposed?) this corner case
where the loop over columns continues even after all usecols
have been fulfilled, causing an out-of-bound lookup in names.
Merge pull request #5770 from y-p/GH5766

BUG: regression in read_csv parser handling of usecols GH5766
BUG: setitem for iloc/loc with a slice on a Series (GH5771)
Merge pull request #5772 from jreback/series_loc

BUG: setitem for iloc/loc with a slice on a Series (GH5771)
DOC: Mention rpy2 breakage in release notes
TST: closes (GH5778), failing tests on non-little endian for stata (sparc)
BUG: big endian timedelta fix (GH5779)
Merge pull request #5780 from jreback/sparc_fix

TST: close sparc test failures
Update comparison_with_r.rst
TST: ensure_clean skips test when fs doesn't support unicode (sparc)
Merge pull request #5783 from y-p/PR_ensure_clean_fs_unicode

TST: ensure_clean skips test when fs doesn't support unicode (sparc)
BLD: print_versions get uname() via cross-platform API
Merge pull request #5784 from y-p/PR_print_versions_uname

BLD: print_versions get uname() via cross-platform API
TST: ensure_clean needs to import nose to skipTest()
Merge pull request #5761 from chappers/r-compare

DOC: Flesh out the R comparison section of docs (GH3980)