add yahoo weather api.
Merge pull request #26 from jsmit032/weather-api

add yahoo weather api.
modified destination.rb
Merge pull request #27 from jsmit032/user-dest-model

modified destination.rb
edited all relationships in models
Merge pull request #28 from jsmit032/user-dest-model

edited all relationships in models
edited destination.rb and user.rb
Merge pull request #30 from jsmit032/user-dest-model

edited destination.rb and user.rb
added 's' to jquery.min.js script
Merge pull request #31 from jsmit032/user-dest-model

added 's' to jquery.min.js script
Attempt #7 for heroku deployment