BUG: DatetimeIndex with freq raises ValueError when passed value is too short
Changed the link to my entries in the cookbook

Updated my blog location where I had kept these entries.
Merge pull request #7125 from nipunreddevil/master

Changed the link to my entries in the cookbook
Merge branch 'setfreq' of https://github.com/sinhrks/pandas into sinhrks-setfreq

Conflicts:
	doc/source/release.rst
adapt matplotlib .gitignore file
add sem to nanops
add sem to aggregate methods
add sem to groupby
add sem to docs