1.1-1 (12/20/2018)
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Added plyr to dependencies

1.1-0 (6/2/2016)
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The (rounded) migration dataset replaced by a dataset with more precise 
values (with 3 decimals). [thanks Jon Azose]

1.0-1 (10/14/2015)
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In UNlocations, reg_code and reg_name corrected for Western Asia (922).

1.0-0 (7/29/2015)
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Initial version.