Update databases/sqlrelay to 0.64.
Remove bl3 entries that were really only part of devel/rudiments.

- fixed bug in sqlrsh that caused it to filter out non-ascii
  characters
- added informix connection module
- added shutdown loop detection in sqlr-listener
- fixed dbhostname/dbipaddress requests
- added bind variable format validation to php pdo driver
- added softttl parameter
- added db/language detection to configure.vbs
- added passwordfunction parameter to "sqlrelay" authentication
  module
- added -disable-crash-handler command line option to server
  processes
- postgresql connection module PQclear()'s the result of
  PQprepare() now, fixing a memory leak
- updated postgresql connection module to handle invalid bind
  variables properly, and without crash
- added various missing postgresql functions to the postgresql
  drop-in library, most notably PQprepare, PQexecPrepared,
  PQexecParams
- simplified sqlrpaths/sqlrcmdline classes a bit
- renamed sqlrconfigfile to sqlrconfig
- implemented a modular configuration framework
- config files can be loaded over protocols supported by libcurl
  now or http if rudiments compiled withougt libcurl support
- config files can now be "link files" which just refer to other
  local config files, local config directories, or remote config
  files
- updated sqlr-start and sqlr-scaler not to pass the default
  -config value if sqlr-start wasn't explicitly started with
  -config
- fixed a bug that could cause sqlrsh to act funny if the last
  character prior to the command delimiter was a single or double
  quote
- fixed a stacked result-set translation module bug
- applied George Carrette's patch to fix potential PDO
  null-dereferences

(fhajny)