BUG: Index.min and max doesnt handle nan and NaT properly
BUG: TimeGrouper doesnt exclude the column specified by key
Merge pull request #7279 from sinhrks/minmax

BUG: Index.min and max doesnt handle nan and NaT properly
Merge branch 'resampleex' of https://github.com/sinhrks/pandas into sinhrks-resampleex

Conflicts:
	doc/source/v0.14.1.txt
DOC: windows binaries are built against numpy 1.8.1
BUG: bar plot can now handle bottom and left kw
BUG: hist raises TypeError when df contains non numeric column
BUG: tzinfo lost when concatenating multiindex arrays