layout changes from pr/2
Merge branch 'pr/2'

Conflicts:
	app.py
	index.html
	static/app/js/directives.js
	static/app/partials/home.html
	static/app/partials/id/home.html
	static/app/partials/id/select.html
	static/app/partials/select.html
refactor header footer
merge pr/2 + major changes

- refactor header & footer
- refactor some style elements in html to app.css
- re-layout index.html
- overhaul url routing: reduce dependencies on $routeService, use
global variable via AngularJS service instead (new service 'Global')
- Adding new hotspot via radio button works!! name, lat, and lon are
taken from 4sq API call result
- default views currently made in Bahasa; no multilingual feature yet