Guides CTA module - DO NOT MERGE

Adding a small CTA module that directs undecided users to our guides. 

Will appear at the bottom of each vertical page and send the user to a guide or tip that's most relevant to them.

Probably a bit janky on big screens, so don't merge yet.

Just on gyms for now whilst we get it right

![image](https://cloud.githubusercontent.com/assets/1246990/4611418/46bbf7cc-52ba-11e4-9611-342edd3926e5.png)