Merge pull request #1796 from ppasq/fixer

Fix 2 minor style issues in geoexplorer map page
Disabled lazy loading, refs #1795
Zoom to extent instead of bbox (temporary), refs #1795
Merge branch 'master' of github.com:GeoNode/geonode
Updated changelog for version 2.4a33
Fixed pyflake issues.

I hereby promise to run flake8 before every commit in the future. -Ariel
Fix map.zoomToExtent
Updated changelog for version 2.4a34
Levels, V2
Merge pull request #1799 from state-hiu/levels_2

Announcement Types/Levels - Version 2
bump announcement version and update css