Search total count is sometimes 0

See https://github.com/oaeproject/Hilary/issues/784

This seems to happen when the total number of results % page size (12) is 0. In other words, when the infinite scroll tries to load the set of results following the last page, it returns 0 as the total count.

![screen shot 2014-02-13 at 16 32 38](https://f.cloud.github.com/assets/109850/2161974/a1f58588-94cc-11e3-8492-67611bb02af5.png)