Keyword search -- correct results count Fixes #837

The true results count is available via the `BrowseRequest.getNumHits()` method. However this was refactored in f14f1b7911f3fc1b334dc6f716fd75506e1ca11a to another class and the count was instead done on the parsed search results. The problem with this is the parsed search results will only have 100 (or whatever) per page so will not be the true count. 

Refs #837