Update Jsonary
Make buttons slightly less intrusive

When there are a lot of schema titles and links, they make it hard to
see the underlying data.
Update Jsonary
Add .gitignore

My Mac puts .DS_Store files everywhere, I need to ignore them :)
Wrap JSON parsing in try/catch

On Chrome on my MacBook, it sometimes tries to parse JavaScript as
JSON, errors, and then doesn't display anything at all.

A try/catch deals with this (as well as improper JSON).
Merge pull request #20 from geraintluff/master

Jsonary update (and minor styling)