Allow all params to be passed via body for POST _all_docs

This change should allow users to supply all params in POST that can be supplied for GET now. This way we could avoid the ?key="foo" things that would probably cause a lot of pain for users.

As /{db}/_design_docs and /{db}/_local_docs are analogous to _all_docs, this change applies to all three of them.
7 files changed