Adds rightAlignYAxis chart, spec and feature inheritance improvements.

[quetzaluz]

Features in this PR:

• Adds rightAlignYAxis option as demonstrated here:
  
• Adds missing spec coverage for multiChart
• Nests some template features in a block such that other chart types can inherit them (features now inheritable that weren't before include show_controls toggle and no_data_message

[coveralls]

Coverage increased (+2.8%) to 81.67% when pulling 258c3ba on quetzaluz:feature/rightAlignYAxis-and-specs into 8c1c1fa on areski:develop.

[areski]

Thanks for the PR!
Should we not also add the surcharge to the other templates, for instance cumulativelinechart.html?

[quetzaluz]

The other chart types also support these features (show controls toggle and no data message is universal) so I believe they should also have the template change. Otherwise they do not render these options when they are set. I can do some extra testing around this though if needed.

[areski]

Yes please, for sake of consistency it makes sense we update all the chart when we add an option

[quetzaluz]

Looks like this will be included in cumulativelinechart.html, because that template calls super() for the body block and the new rendering_opts block is nested in body:
From nvd3\templates\cumulativelinechart.html:

{% block body %}

{# calling super guarantees everying in content is also found here ...#}
{{super()}}

{% endblock body %}

For templates that don't call super() within body (AKA they have overrides for body) I have already added this new rendering_opts block. Looks like the only chart overlooked was pie chart; I have just pushed a commit to include the change there as well.

[coveralls]

Coverage increased (+2.8%) to 81.67% when pulling 554261f on quetzaluz:feature/rightAlignYAxis-and-specs into 8c1c1fa on areski:develop.

[quetzaluz]

This is written out instead of just calling super because pie chart cannot have the stacked option but it can have the no_data_message and show_controls options. If we're okay with including stacked (and just count on people not trying to apply it to pie chart) I can revise this to just call super()

[areski]

good with me!

[areski]

Thanks for following up!