Adds modal with error messages
Try and catch if IG response is bad
Removes flicker on map show
Removes memory store sessions, unneeded
Adds favicon, replaces map with new colors
Shows caption on hover over image
Display modal if no pictures in array for two steps
Minifies bootstrap.css
Merge pull request #11 from jonjchew/add-modal

Adds modal, caption, and handles no update objects