[#46] Adds organization_type to dataset listings
[#47] Changes h1+h2 size down to h3
[#47] Remove last senteance on search page
[#47] Moves helper text into custom tooltip
[#46] Final tweaks to UI
[#47] Removed old trailing image logo
Merge branch '46-org-type' into 43-spatial-search

Conflicts:
	ckanext/geodatagov/fanstatic_library/styles/geodatagov.less
Merge branch '43-spatial-search' of github.com:okfn/ckanext-geodatagov into 43-spatial-search