Added styles for z-menutexttitle to handle long descriptions

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | --
| Fixed tickets | --
| License       | MIT
| Doc PR        | --

This is how it looks like before (Take a look at the `MiniPlan` module):
![image](https://f.cloud.github.com/assets/2145092/758048/9d689348-e70c-11e2-8fdb-577fddd35c60.png)
And this is how it looks like with the changes:
![image](https://f.cloud.github.com/assets/2145092/758045/880aaa9a-e70c-11e2-9eab-415d081f17b4.png)