Label gets too many props

[jbinto]

While writing integration tests I noticed Label is getting way too many props from its parent, Input (output below is from Enzyme's .debug()):

<FriggingBootstrap.Label title="City" label="City" placeholder="City" layout="vertical" align="left" name="city" validate={true} disabled={false} errors={[undefined]} onChange={[Function]} onValidChange={[Function]} saved={[undefined]} value="Sunnyvale" theme={{...}} options={{...}} modified={false} labelHtml={{...}} inputHtml={{...}} valueLink={{...}} xs={12} sm={[undefined]} md={[undefined]} lg={[undefined]} xsOffset={[undefined]} smOffset={[undefined]} mdOffset={[undefined]} lgOffset={[undefined]} block={false} labelWidth={{...}} prefix={[undefined]} suffix={[undefined]} onColor="primary" onText="ON" offColor="default" offText="OFF" bsSize={[undefined]} handleWidth={[undefined]} format="0,0[.][00]">
  <div>
    <label saved={[undefined]} modified={false} block={false} validate={true} format="0,0[.][00]" theme={{...}} label="City" md={[undefined]} value="Sunnyvale" options={{...}} onColor="primary" sm={[undefined]} title="City" disabled={false} mdOffset={[undefined]} inputHtml={{...}} labelWidth={{...}} align="left" suffix={[undefined]} bsSize={[undefined]} lg={[undefined]} onText="ON" onValidChange={[Function]} placeholder="City" prefix={[undefined]} errors={[undefined]} layout="vertical" labelHtml={{...}} offColor="default" xsOffset={[undefined]} smOffset={[undefined]} lgOffset={[undefined]} name="city" offText="OFF" valueLink={{...}} handleWidth={[undefined]} xs={12} onChange={[Function]} className="">
      City
    </label>
  </div>
</FriggingBootstrap.Label>

This is probably just a simple overuse of ...props but it's probably worth going through these (use of ...props everywhere) more carefully, and consider being explicit instead.

It also shouldn't pass down any props at all to the HTML <label>.

While we're at it, things like xsOffset, mdOffset, etc. really should be on a bootstrap object (and maybe even on context instead of props).