Fixes strict error
Fixes event categories widget not redirecting / non-hierarchical
Fixes tooltip list styling.
Return occurrence ID in eo_get_next_occurrence_of
Add support for data and style in eventorganiser_select_field()
Fixes tooltip off viewport error
Update .gitignore
Register post types & taxonomies early. Fixes #122.
Merge branch 'master' of github.com:stephenharris/Event-Organiser