Merge branch 'release'
readme updated.

Merge branch 'dev'
Merge branch 'dev'
[v0.1.3] - Play tracks from artist node
  - look and feel of the nodes updated
  - on double click a node in the graph, top tracks of the artist are played

Merge branch 'dev'
Merge branch 'dev'
Update install.sh
Update install.sh
release v0.2

Merge branch 'dev'

Conflicts:
	install.sh
Update README.md
v0.3 - Equalizer graph added

Merge branch 'dev'

Conflicts:
	README.md
	deploy
v0.5

Merge branch 'dev'
v0.6

Merge branch 'dev'
v0.8

Merge branch 'dev'
v0.9

Merge branch 'dev'
Update README.md
Update README.md
v0.9.1

Merge branch 'dev'

Conflicts:
	README.md
v0.10

Merge branch 'dev'
bugfixes: click the same tag and loading tags.

- clicking on the same tag more than once has no effect.
- previous tags disappear, and "loading tags..." message is shown.
artist's id being used to get tags.

echonest limits requests to 120/min.
requests are cached, but this is not enough.