          <div id="siteinfo">{$GLOBAL.websitename}<br/>
            <span class="slogan">{$GLOBAL.slogan}</span>
          </div>
          <div id="ministats">
            <table border="0">
              <tr>
                <td><li>{$GLOBAL.config.currency}/{$GLOBAL.config.price.currency}: {$GLOBAL.price|default:"n/a"|number_format:"4"}&nbsp;&nbsp;&nbsp;&nbsp;</li></td>
                <td><li>Pool Hashrate: {($GLOBAL.hashrate / 1000)|number_format:"3"} MH/s&nbsp;&nbsp;&nbsp;&nbsp;</li></td>
                <td><li>Pool Sharerate: {$GLOBAL.sharerate|number_format:"2"} Shares/s&nbsp;&nbsp;&nbsp;&nbsp;</li></td>
                <td><li>Pool Workers: {$GLOBAL.workers}&nbsp;&nbsp;&nbsp;&nbsp;</li></td>
              </tr>
            </table>
          </div>

          <div id="siteinfo">{$GLOBAL.websitename}<br/>
            <span class="slogan">{$GLOBAL.slogan}</span>
          </div>
          <div id="ministats">
            <table border="0">
              <tr>
                {if $GLOBAL.config.price.currency}<td><li>{$GLOBAL.config.currency}/{$GLOBAL.config.price.currency}: {$GLOBAL.price|default:"n/a"|number_format:"4"}&nbsp;&nbsp;&nbsp;&nbsp;</li></td>{/if}
                <td><li>Pool Hashrate: {($GLOBAL.hashrate / 1000)|number_format:"3"} MH/s&nbsp;&nbsp;&nbsp;&nbsp;</li></td>
                <td><li>Pool Sharerate: {$GLOBAL.sharerate|number_format:"2"} Shares/s&nbsp;&nbsp;&nbsp;&nbsp;</li></td>
                <td><li>Pool Workers: {$GLOBAL.workers}&nbsp;&nbsp;&nbsp;&nbsp;</li></td>
              </tr>
            </table>
          </div>

Disable trade currency if no price currency defined
Disable trade currency if no price currency defined

This will disable the trace exchange display in the header if no
currency is defined in the configuration.

Fixes #298
