Fixed bug caused by Content Security Policy
Use Google Maps Image API Instead
Remove code for debugging
Merge pull request #498 from ym/master

Fixed a bug caused by Content Security Policy
Migrated Twitter API from 1.0 to 1.1
Merge pull request #500 from ym/twitter-apiv11

Migrated Twitter API from 1.0 to 1.1
Replace api_base at startup
Merge pull request #501 from ym/twitter-apiv11

Replace api_base at startup