Extractor from zotero now saves city instances correctly
Manage when more than one child elements exist
Included relationshipt between News-Event
New models for Contributions, Talks/Courses and Awards added
Included silly templatetag to correctly render publication type
Updated library versions and added inflection for string management
Added method to allow queries by authors name, tags and publication titles
Sanitize type names
Fixed bug with numpy usage
New rendering of publication types
Included reference to related publications
Adapted templates to new Publications model
Updated reference to type slug
New own publications display
Much faster tag cloud rendering