Merge pull request #95 from datamade/master

made chart point markers visible
adding google fonts
moving css to override file / adding logo images
top nav changes / logo
tweaking active state css on top nav / related to #96
adding logo to footer / links on the same line / closes #69
beefing up resources link / #78
adding subtle background image
adding padding to homepage header
set current page main nav item to active, closes #96
added tooltip for local resources checkbox, closes #78