Made collectAsArrow allocator param Option#20

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BryanCutler wants to merge 2 commits intoarrow-integrationfrom

stc_toPandas_with_arrow

Commits on Jan 25, 2017

Changed RootAllocator param to Option in collectAsArrow
BryanCutler
committed

Commits on Jan 26, 2017

added more tests and cleanup
BryanCutler
committed