Changes for #238 #251

also 3px design issue on second column
#238 #251  Merge branch 'preDev-alex-css' into
preDev-alex-general-changes

Conflicts:
	ckanext-metadata_fields/ckanext/metadata_fields/templates/package/snippets/additional_info.html

I've merged this now because this commit:
https://github.com/OCHA-DAP/hdx-ckan/commit/4f9ac151c59332840ddb6d7e45b1cc82f2c4f8fb
was not merged before.