filter with blank
trying to add empty field (not finished)
Blank checkbox included
move the blank checkbox to the right
solved blank fields bug
Merge branch 'blank_fields' of github.com:unepwcmc/SAPI into blank_fields
Merge branch 'develop' into blank_fields

Conflicts:
	app/assets/javascripts/trade/controllers/shipments_controller.js.coffee
	app/assets/javascripts/trade/templates/shipments/_filters.handlebars
fix another bug on blanck fields
fixed small issues
Merge pull request #117 from unepwcmc/blank_fields

Blank fields