adding structure for parent child index

- missing is _mapping
fixing bug parent child backwards mapping prevention
null exception handling
Setting up the init index and mappings command for child parent documents
setting up mapping init
setting up mapping init
insert child parent types to one index
Adding Get for child document in the same shard as parent
Tests for child entities
Tests for child entities
switches entity test to index with parent child types
code clean up
extra tests for arrays
Merge branch 'release_V1_0_8'