keep track of actual census number for each plot in the census table during forestplots import

[ashenkin]

[ashenkin]

right now we keep track of the census_id as given by the database, but not of actual census number.

gemdata_production=> select * from censuses
gemdata_production-> ;
id | number | mean_date | created_at | updated_at | plot_id | batch_id
----+--------+-----------+----------------------------+----------------------------+---------+----------
1 | 1 | 2013.058 | 2015-02-23 14:29:34.266469 | 2015-02-23 14:29:34.266469 | 1 | 1
2 | 1 | 2006.504 | 2015-02-23 14:29:58.226613 | 2015-02-23 14:29:58.226613 | 2 | 2
3 | 2 | 2010.066 | 2015-02-23 14:30:05.513481 | 2015-02-23 14:30:05.513481 | 2 | 2
4 | 3 | 2011 | 2015-02-23 14:30:14.288111 | 2015-02-23 14:30:14.288111 | 2 | 2