11 more vacuum cleaner manuals added

11 more vacuum cleaner owner's manuals and parts lists were added recently:

- Eureka: 1 vacuum cleaner manual, 1 vacuum cleaner parts list
- Kenmore: 4 vacuum cleaner manuals
- Shark: 2 vacuum cleaner manuals
- Shop-Vac: 2 vacuum cleaner parts lists
- Stanley: 1 vacuum cleaner manual

Stanley vacuum cleaner manuals

Owner's manuals:
- Stanley 3-5 Gallon Wet/Dry Vacuum Cleaner (2011)
- Stanley 3-5 Gallon Wet/Dry Vacuum Cleaner (2013)
- Stanley 6-10 Gallon Wet/Dry Vacuum Cleaner
- Stanley Portable We/Dry Vacuum