Recurring Recommendations

The changes / functionality for the Recurring Gifts Recommendation Engine (https://jira.cru.org/browse/IN-62)  is ready for review. 

Insights Tab 
![image](https://cloud.githubusercontent.com/assets/399724/5273274/3d82014a-7a53-11e4-940b-62351616af70.png)

Contacts Page - Increase Recommendations Link
![image](https://cloud.githubusercontent.com/assets/399724/5273161/4b2d5ac0-7a52-11e4-95ec-9715bf8585f9.png)


Contacts Page - Increase Recommendations Contacts
![image](https://cloud.githubusercontent.com/assets/399724/5273179/6baea3c6-7a52-11e4-9da4-a2b8d7031c04.png)

This shouldn't be necessary. The `current_user` method is available in views.