Working flow with gulp installed in home dir

To use:
 - Link `package_test.json` to `~/package.json` and run `npm install` in `~/`
 - Then `gulp styles` and `gulp scripts` should work in the design dir
Renaming package_test.json to packge.json and adding compiled css
Merging in changes from develop

Conflicts:
	demokratikollen/www/app/static/css/styles.css
	demokratikollen/www/app/templates/layout.html
Switch to gulp and make all static dependencies local

 - Grunt has been exchanged to gulp
 - JS and CSS dependencies are specified in www/design/gulpfile.js
 - JS and CSS dependencies are concatenated and minified
 - Other files, e.g. fonts and images, are copied
 - layout.html has been adapted to new styles/scripts
 - Old static files have been removed
Fix details and adapt parliament page
Ignore images in static/css
Change provision to install gulp packages in home directory
Merge pull request #73 from joelgoop/gulp

Switch front-end task runner to gulp and use local dependencies