Fix broken dependency

See https://github.com/eligrey/FileSaver.js/issues/60
Add plugin for area
Add area to popup when Polygon
Missing ; thanks jshint
Area is approximate
jshint made me do this to validate.
Ass jshint to dev

for travis
removed leaflet-geodesy from header
added leaflet-geodesy into nom manifest
Revert "jshint made me do this to validate."

This reverts commit e2229a7df517106722d4ce2f3894a30fc31d79a0.
Revert "removed leaflet-geodesy from header"

Avoids having a broken branch.
leaflet-geodesy from npm
Merge branch 'show-area' into gh-pages

Conflicts:
	dist/site.js
	dist/site.mobile.js