Allow custom translate function when slider steps are specified

[nparrish]

Currently, if the user specifies a steps array, their translate function is ignored. This changes that. When a translate function is specified, it will be passed the step value (the array index), the slider ID, and the slider label.

[codecov-io]

Current coverage is 100.00%

Merging #299 into master will not affect coverage as of 7ca4b4b

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  Stmts          699     701     +2
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+ Hit            699     701     +2
  Partial          0       0       
  Missed           0       0       

Review entire Coverage Diff as of 7ca4b4b

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[ValentinH]

Why don't you just do:

this.customTrFn = this.options.translate;

?

[nparrish]

Good point.

[ValentinH]

Why do you need to use a translate function while using stepsArray?

[nparrish]

For each point on the slider, the displayed text should be different depending on whether it is the high end or the low end of the slider.

[ValentinH]

Thanks for the updates. Could you add a test to complete the coverage? Also, before I can merge, you need to rebase and squash all your commit into a single one.

[nparrish]

Done. Thanks for the feedback, and let me know if you'd like to see any other changes.

[ValentinH]

One last thing: can you rebase and squash everything so there is only one commit?

[nparrish]

Commits squashed!

[ValentinH]

Thanks ;)