Added _pageHasContent method, updated navigation to only add pages with content
Added hasContent() module api method, which by default checks if any pages have content
Updated EventPage to only include modules that have content
Configured product types on scientific module pages
Refactored product type check into separate method
Fix bug in getPageInfo (now only check pageHasContent if page matches), removed unused variables
Configured hasContent and productTypes for dyfi module
Changed whitespace in productTypes config for ScientificModule
Merge pull request #21 from jmfee-usgs/LATESTEQ-142

Latesteq 142
Remove some space between headers and their content