#780 - present reader detail view sharing options via popover on iPad

#780 

Old vs. New:

![ios simulator screen shot dec 11 2013 9 33 46 am](https://f.cloud.github.com/assets/3904502/1726138/8a02c298-628a-11e3-90d3-e1cf05b07597.png)
![ios simulator screen shot dec 11 2013 9 29 07 am](https://f.cloud.github.com/assets/3904502/1726139/8b480bae-628a-11e3-8729-d60038969df4.png)