management tasks improvements#170

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guglielmo wants to merge 15 commits intomysociety:i18n-itfrom

openpolis:i18n-it

Commits on Mar 3, 2015

geojson areas export task implemented; import postal codes task implemened; generate constituencies csv implemented; import area unions task adjusted
guglielmo
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an error while assigning generations has been corrected
guglielmo
committed
an error while assigning generations has been corrected
guglielmo
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Commits on Apr 2, 2015