Created custom taxonomies

Replaced "categories" and "tags" with "types" and "keywords"
Changed taxonomy 'type' to 'department'

'type' is a reserved term that shouldn't be used in WordPress development
Added slugs for taxonomies

'Department' given the slug 'ec' and 'Keyword' given the slug 'kw' to prevent conflict with WordPress Categories and Tags.
Modified slugs

Slug for single 'sp_item' is 'items'
Slug for 'Departments' is 'store'
Slug for 'Keywords' is 'key'
Merge pull request #4 from starverte/development

New Taxonomies