Fix include_in_all for multi field, to not include multi fields into _all field.

Closes #5522
Set the actual bytes used in circuit breaker back to how it was before loading if the loading wasn't successful.

Closes #5526
Allow to disable norms on an existing field.

Close #4813
PagedBytesReference with a boatload of tests. Passes all new and
existing tests. Non-allocating hashCode/Equals, zero-copy writeTo() and
ChannelBuffer support.

Fix for #5427
[Docs] updated the search template and query template docs