Hotfixes prod

Several hot fixes for issues found in production since last upload:

- Some missing catalan translations in Statistics pages
- Only show current company tags
- Fixed problem where offer tags would redirect always to inquiries tags
- Remove offers and inquiries menu links for users not logged-in and replace by two public links to offers and inquiries under administration menu, so administrators can copy those links to show in their websites
- Remove create offer and inquiry buttons for non-logged users