Incubaid/arakoon — pull request #268 by NicolasT (2013-12-11 09:48:38+00:00)
Title: Return `E_NOT_SUPPORTED` from slave-only calls on master

This commit changes the error returned from `_not_if_master` and `quiesce_db` from `E_UNKNOWN_FAILURE` (which closes the client socket) to `E_NOT_SUPPORTED` (which keeps the client socket as-is) in case the call is only valid on non-master nodes.