Increase variable character limits for s.pageName and s.prop

Existing Functionality: Currently variables such as s.pageName and s.prop have a 100 character limit. This is extremely limiting when implementing a page naming strategy, particularly when including additional information with the page title. For example, site and country. In global suites, its often important to include additional information such as site, country, or a unique page ID to ensure the page name is unique and allow for additional pathing data.

Idea: Increase the character limitation on s.pageName and s.prop to 255 characters to be consistent with other variables such as URL, Referrer, s.eVar, s.hier, and s.campaign.