ENH Added round trip tearheet and supporting functions#210

Merged

a-campbell merged 18 commits intomasterfrom round-trip2

Nov 23, 2015

+744-52

Commits on Nov 16, 2015

ENH Added round trip tearheet and supporting functions
a-campbell
committed

Commits on Nov 19, 2015

STY break round trip functions out into their own file
a-campbell
committed
BUG drop both nan and zero positions from list of positions to close in add_closing_transactions. push final transaction back by one second to avoid overlap
a-campbell
committed

Commits on Nov 23, 2015