adds leaflet map to checkin_form.js.coffee, optional mobile css, and custom marker example
removed extraneous image
Merge branch 'development' of github.com:JamesRoyPoulter/project_jac into development_a
Merge branch 'development' into feature_leaflet_checkin
Merge branch 'development_a' into feature_leaflet_checkin
Merge branch 'development' of github.com:JamesRoyPoulter/project_jac into development