Index 'top-level' and 'container' flags
filter search results using container and top-level flags
Merge branch 'master' into mbst-3962-search-episodes
Index children as part of parent index, since they must be indexed with both their title and the container's title.
Title scores should not be added together. Instead the maximum subquery score should be
taken using a DisjunctionMaxQuery
MBST-4059: Episode search should return top level items when topLevelOnly is false
Merge pull request #16 from atlasapi/mbst-4219-index-children

Index children