Use google finance as datasource (test only, still pointing to yahoo finance)
Remove unneeded import from test_google
Implement _get_hist_google
No current finance data from Google
Corrected typo in data
Change google finance tests to @network only
Tag yahoo data tests as @network only
CLN: conform read_clipboard / to_clipboard to new io standards

     removed to io.clipboard (from io.parsers)
Merge pull request #3824 from jreback/clipboard

CLN: conform read_clipboard / to_clipboard to new io standards
Merge pull request #3814 from gliptak/googledata

Implement historical finance data from Google Finance
DOC: release note for #3814
Merge pull request #3816 from gliptak/patch-1

Tag yahoo data tests as @network only
BUG: missing imports for clipboard
BUG: missing imports from clipboard 2
TST regression tests for GH3836
BUG: fix Series.interpolate() corner cases, close #3674
Merge pull request #3839 from hayd/GH_3836

TST regression tests for GH3836
CLN: remove relative imports
Merge pull request #3827 from cpcloud/remove-relative-imports

CLN: remove relative imports
DOC: speedup io.rst doc build