Software and services company 6Qube LLC has completed a $100,000 round of funding. The Austin-based startup, which is operated by Blue Jag Enterprises LLC, plans to use the capital to fuel its sales and marketing combined with upgrades to its software. Seattle-based Lighter Capital was the lone investor, according to a company news release. 6Qube, which was founded in 2009, develops software designed to enable businesses to increase online visibility, leads, and follow-up through its inbound marketing…