Fixed an issue where series values having spaces and invalid characters would invalidate class names

[DiogoRDuarte]

Summary

Because

While implementing a multi-series chart, the values of the chosen series key couldn't have spaces and invalid characters in them. This is an issue since these values are eventually converted to class names and spaces in them means having different classes.

This Commit

• Fixed an issue where series values having spaces or invalid characters would invalidate class names. The multi-series implementation experience remains intact with the addition of being possible to have spaces and invalid characters in the series strings.
• Removes leftover console logs from the examples;
• Removed repeated titles and chart types from the shorter and longer manual descriptions;