18 vacuum cleaner manuals added

18 more vacuum cleaner manuals and parts lists have been added to the site recently:

- Dyson: 2 vacuum cleaner manuals
- Electrolux: 1 vacuum cleaner manual, 1 vacuum cleaner parts list
- Eureka: 1 vacuum cleaner manual
- Hoover: 3 vacuum cleaner manuals, 1 vacuum cleaner parts list
- Oreck: 2 vacuum cleaner manuals, 1 vacuum cleaner service manual, 3 vacuum cleaner parts lists
- Sanitaire: 1 vacuum cleaner manual, 2 vacuum cleaner parts lists