AMEC-1943 removed the call to populateFromAnnotation method
Merge branch 'dev-corrections' of github.com:PLOS/ambra into dev-corrections
AMEC-1877 added a check for empty database result for assets to avoid IndexOutOfBound exception. If the result is null or empty, the service will return null
AMEC-1877 when loading the article page check whether the article has a pdf or not
Merge branch 'dev-corrections' of github.com:PLOS/ambra into dev-corrections