OFC-1419 - CSV export runtime exception when exporting multiple entity
with nested single entities
Merge branch 'bugfix20130826'
OFC-1421 - Add expression preview in checks list
Code clean
Use idm snapshot version
Code clean
Merge branch 'master' of github.com:openforis/collect into csvimport
Code clean: remove unused labels
CSV data import tool: handle unit and srs not found errors
OFC-1423 - CSV data import tool: improve error handling