fix(rz-vertical rz-tick-value): Position long labels on vertical sliders correctly

[dbartholomae]

Fixes #305

I manually checked whether this works by using the same change on http://angular-slider.github.io/angularjs-slider/
But given that I don't now the code base that well and style changes are not covered by tests, you might want to check this again.

[codecov-io]

Current coverage is 100.00%

Merging #306 into master will not affect coverage as of e19c151

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[ValentinH]

Thanks for taking care of this.

30px looks too far to me, I would use left: 24px. What do you think?

Here's a demo with you code: http://jsfiddle.net/y57c3bco/

[dbartholomae]

Personally I would prefer a little more spacing (left: 30px). For backwards compatibility you might want to choose 22px though, as this seems to correspond to the old positioning :)

[ValentinH]

Indeed, the goal is to keep the same style as before and to have the same space for horizontal and vertical sliders.

Then you can still override the value in your custom CSS ;)

[dbartholomae]

Forcepushed the change to 22px to this branch :)

[ValentinH]

Great thanks ;)