flickr tags

[djsmith]

Added tagSelect method that fetches tags used on the photos and turns it into a select list. The select list can then be used to filter the photos returned from a photoSearch method call.

• Example included in examples.html

[fallenartist]

Cool addition, djsmith! Any ideas how to add an option where the size of multiple select list is equal to the number of fetched tags (so all tags are visible at once), possibly when multiple: true option is set and size is left undefined? Would be also good to populate list with human readable "raw" tags rather than clean versions without spaces, I think.