Id's conflicts

[Timopheym]

Here D4 created svg element with chart id.
https://github.com/heavysixer/d4/blob/master/src/base.js#L354
If you want to have several charts - you will get id conflicts.
May be it would be better to remove id form there?

[heavysixer]

@Timopheym yes this is a good idea. Can you make this change and a test and send me a pull-request?

[heavysixer]

@Timopheym actually, why does this example not produce the same error? http://visible.io/charts/column/small-multiples.html

Do you have a fiddle document that you can show with this error?