Add support for international metric system measure units (meters)

[martjanz]

Looking at parking_rates and sqft_per_rate among other params emerges the following question:
Why if parcel_sizes can use imperial and metric measure units the other parameters are fixed to the former? Maybe units could be considered imperial if not specified (default) and metric if some flag param exists.
Maybe not a top priority but could we consider this mainly to be able to use ProForma module outside countries that use imperial system.

[martjanz]

I saw that note but the acceptable ranges are defined for feets and all methods names and comments use _feet_ or _sqft_. If this method is measuring system agnostic maybe could be named `squareUnitProForma()` or something as generic as it is. Anyway, I think is no more than a narrow semantic difference. Maybe we should resume this discussion later, when more significant issues are solved.

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On Thu, Mar 16, 2017 at 4:08 PM, Paul Sohn ***@***.***> wrote: This may not be an issue - see this note <https://github.com/urbansim/developer/blob/dev/developer/sqftproforma.py#L29-L30> from the original code. Leaving this open because we should confirm. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#30 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AE6wk0aa1oN8TsB2WrgQaHtdaOn3jGApks5rmYirgaJpZM4MV2OG> .