Redis database select upon connect
Configuration options
- Fixed select message type
- Added log notice for triggering a select
- Fixed a missing prototype warning
Adjusted code based on recommedations:
- server_conn_init moved to redis plugin (redis_conn_init)
- renamed conn->initialize to conn->init
- fixed typos and comments
- removed a now obsolete check from #217 in nc_request.c
Warning on failed select
- added a callback that can inspect a req/rsp before it is swallowed
- this callback is now used with redis so it can check on failed selects
Merge pull request #294 from arnecls/RedisSelectDB

Redis SELECT on connect