Fix for issue #69 on github: units of measure metadata#72

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andrewjkennedy wants to merge 3 commits intodotnet:fsharp4from andrewjkennedy:fsharp4

+54-9

Commits on Jan 20, 2015

Pickling of metadata for units: need to ensure that integer exponents are pickled in a form compatible with F# 3.x tools.
andrewjkennedy
committed

Commits on Jan 21, 2015

Pickling of units-of-measure:
andrewjkennedy
committed
Small cleanup of units pickling
andrewjkennedy
committed