header color change, removing now flag from places

Thanks for understanding my wacky and undocumented geojekyll. Nicely done :)

I removed the now flag from posts.  In the slider it should display the year in the upper left, but there seems to be a z-index issue.

I updated the color of the header and I'll keep working through the other colors.  It might be nice to go with a slightly lighter theme.

Also, if you should need it, there is a geojson file generated for the places in http://pdxosgeo.github.io/foss4g2014web/assets/data/places.geojson

I intended to add some markers.

Thanks!