changed capitalization for Slate_logo file name
Merge pull request #142 from erinspace/sponsors

changed file sizes and added a logo for disconnected sponsors page
Merge pull request #141 from erinspace/new_news_stories

changed capitalization for Slate_logo file name
re-added normal science exchange logo
made only one SE logo, added smaller logo to sponsors
Merge pull request #143 from erinspace/logo_fix

fixed broken science exchange logos
fixed google logo for now until bigger things can be addressed
changed spacing and logo sizes to be more sane