TST: skip problematic xlrd test
RLS: Version 0.10.1
RLS: set released to true
DataFrame.from_items clean-up

- Improve docstrings and error messages
- Convert final `elif` to `else`
Update doc/source/install.rst

Python 2.5 isn't supported
BLD: also clean pyo files
DOC: put contribution guidelines in CONTRIBUTING.md
DOC: show travis build status on github page
Update doc/source/io.rst

Tiny docs fix.
Merge pull request #2774 from y-p/fix_guidelines

add travis badge to GH page, imporve contributor guildelines
DOC: update CONTRIBUTING.md
BLD: Travis - only install numpy when we have to, and use 1.7rc1 for 3.3
BLD: Travis workaround for latest breakage

recent image deploy on travis ignores "system_site_packages"
in travis.yml. Implement workaround. yet again.
DOC: Fix syntax so bug listing renders properly
DOC: improving docstring for swaplevel method #2648
Merge pull request #2757 from dandavison/dataframe_from_items_cleanup

DOC: DataFrame.from_items clean-up
ENH: add link to travis build status image
Fix typo in performance_doc
DOC: fix typo in CONTRIBUTING.md
Merge pull request #2820 from stephenwlin/patch-1

DOC: fix typo in CONTRIBUTING.md