Added dependency-loading for scripts & changed how to style images.

- JavaScript now only loads when needed
- Featured images now load using the {{image}} helper.
- Tag pages now show the blog cover image
- Images now use #fragments instead of classes. Enabling styling using markdown.
Updated readme to reflect changes
#fragments are now ignored inside a gallery

Full images are now ignore when part of a collection of images (gallery)
Closes #10
Updated readme with new guide for images
New design for feed

Closes #8.
Masonry layout for #1 Finished.
Changed post-meta information and gutter size

- Post meta now uses symbols instead of language
- Archive gutter is now 30px instead of 20px
Fixed post cover for small devices and display of small images
Dynamic loading of feed content

Closes #1

- Posts are now loaded when "Load more"-button is pressed. Based on the pagination using Ajax.
- Lots of fade-in animations are added.
- Backgrounds are now aligned center-bottom instead of center.
Merge pull request #9 from Reedyn/feed

New feed design