Filed under: Business, Finance, Web servicesIntuit, the company behind financial management app Quicken, has purchased Mint.com, a web-based personal finance tracker, for $170 million. Quicken already has a web version that plugs into its desktop software, and Mint apparently isn't going to replace it. Meanwhile, Intuit doesn't have plans to change the way Mint works, and the CEO of Mint is joining the company to direct its online operations. That's not enough to reassure some Mint users, though