Merge pull request #15 from danielleadams/json_map_array

Json map array
Fix bug where twitter gem was going over rate limit
Fix bug where sentiment wasn't updating properly
Fix json output to only have one of each country
Merge branch 'master' of https://github.com/cicadas-2014/EmotionAll into kevin/twitter_optimization
Merge pull request #16 from danielleadams/format_map

Format map
Merge pull request #18 from kz363/kevin/twitter_optimization

Kevin/twitter optimization
add main tags to application view
Merge branch 'master' of https://github.com/cicadas-2014/EmotionAll into format_map
add fully responsive header
fix bug in sentiment and sentiment score defaults