added local gallery images to gitignore
refactor Gruntfile for dist target to compile gallery.app.js into a js-lib
not depending on require.js
dev target still uses require.js for easier debugging all the different source
files
dist build uses gallery images from remote service (brnjna.net)
made urls to images relative paths, so that this shit is working on gh-pages aswell
Gruntfile readin the version number of package.json