Add option for icon before button text

[delatorremario]

Hello!, please!

Add option for icon and icon class, for example,

Thanks

PD: if you want, you add me as a collaborator

[rickjordan]

The buttonText property can contain other components. So if you are using Bootstrap (for example), you can do something like this...

<ReactHTMLTableToExcel
    table="table"
    filename="filename"
    className="btn btn-default"
    buttonText={<Glyphicon glyph="download-alt" />}
/>

[dmaison]

@rickdjiii that produces the desired result but throws an error because the expected PropType is a string and that's an object.

Component should be changed to accept child props if the buttonText prop is not provided.

<ReactHTMLTableToExcel
    table="table"
    filename="filename"
    className="btn btn-default">
    <Glyphicon glyph="download-alt" />
    Button Text
</ReactHTMLTableToExcel>

[Linschlager]

Just implemented a fix for the error here #9