added working mobile navigation to splash page. will add to other pages later
added working bootstrap/mobile navigation to both yearindex and detail pages. these pages use a modified bootstrap.css
added splash image and splash hed to main-index page. css file was also updated
added hed, dek, intro and credits to splash page. year-by-year divs to follow
fixed white space glitch on mainindex page
completed basic layout for year-by-year navigation for splash page
finished div layout for select years section for main splash page
turned homicide year modules into links
Merge pull request #8 from sa-express-news/master

Deletes old test files, updates main file to master.csv.  All maps now work.
commented out gspread library
added number of homicides to splashpage.
modified requirements.txt to include Frozen Flask