Support for s3 file handling
Update README and RELEASE for new S3 support
Update io.rst

added io.read_html
ENH: raise useful error message on invalid concat arguments
DOC: tweak
Merge branch 'PR3536'

* PR3536:
  DOC: tweak
  Update io.rst
DOC: remove v0.12.0.txt from whats new
DOC: cleanup line endings
DOC: Added some decriptions to the Selection subsection of the Cookbook
Merge pull request #3559 from cpcloud/concat-invalid-args-exception-3481

ENH: raise useful error message on invalid concat arguments
Update docs noting handling of s3 locations.
Merge pull request #3504 from pjob/s3-support

ENH: Support reading from S3
BUG: Duplicate indexes with and empty DataFrame.from_records will return a correct frame (GH3562_)
BUG: fix panel.transpose arguments API bug

only show the ambiguous aliases as opposed to all key-value pairs

add release note
DOC: add bs4/lxml install note to README.rst
Merge pull request #3564 from jreback/GH3562

BUG: Duplicate indexes with and empty DataFrame.from_records will return a correct frame (GH3562)
Merge pull request #3558 from cpcloud/panel-transpose-args-fix-3556

fix panel tranpose arguments api bug
DOC: minor release.rst changes
Merge pull request #3565 from cpcloud/read-html-readme

DOC: add bs4/lxml install note to README.rst
DOC: readme.rst edits