Fix labels for inputs and misc. bug fixes.

This one should come as a treat :)

While I was searching for bad labels, I found that there was a button rendering `type="{:class=>&quot;fullwidth&quot;}` inside of the HTML which is fixed in b55633a. Then we have another label fix commit.

I also discovered on the taxons page that it says `Click &amp; drag on the products to sort them.`  I have gone and removed the `&amp;` and now its just using the standard `and` word; see 0eff6e4. Also on the taxons page, there was no page title; added in d25c0a73d3fff57de0df18a501c540bf72e6d52f. The taxons page was also not highlighting the products tab in the menu as being active. I've gone and added the taxons to the products tab method in 1cad3de.

The adjust buttons weren't looking great on their own rows. Therefore, I went and made them look a little better in 42a263d. See screenshot:

![screen shot 2014-10-06 at 1 32 37 am](https://cloud.githubusercontent.com/assets/3117356/4523133/5c8fcf74-4d33-11e4-811c-62b714f16c16.png)

I don't see any reason to give them both their own rows. I wasn't able to use the `six columns` to fix this, so I went, floated them, and added a 50% width. Here's how they look now:

![screen shot 2014-10-06 at 1 35 58 am](https://cloud.githubusercontent.com/assets/3117356/4523166/d414dad0-4d33-11e4-8d7c-974fefa77c94.png)