Merge pull request #23 from digicommsucl/master

Clearfix on blockquote
Float classes now concatenated to figure elements

When img was floated, the associated figcaption element wouldn’t float.
Instead the containing figure element should be floated.

NB Indigo docs website will need to be updated (see Notes at
http://www.ucl.ac.uk/indigo/patterns-image.php?pattern=image)
npm-debug.log now in gitignore

I think this log file is generated when installing Grunt project
dependencies (seemed to for me, anyway)
Compiled CSS from float changes

All CSS files here generated by Grunt.

NB There seem to be changes in the CSS that are unrelated to my figure
float ‘fix’. I’m guessing these are from previous SASS changes that
were committed, but weren’t compiled via Grunt (?) - perhaps someone
could check this is ok (or tell me if I’m using Grunt wrongly here)