Support for PostgreSQL Application Name Connection Options

[Jason Boyer]

There is a libpq option to set the application name for the connection that we're not currently taking advantage of. I've got a branch that adds this support for the application_name database parameter. For logging assistance you could add the name of your app servers to the beginning or end of the service name.

[Jason Boyer (jboyer)]

As promised: http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/jboyer/lp1492793_postgres_app_name

[Galen Charlton (gmc)]

The branch user/gmcharlt/lp1492793_pg_app_name contains a signed-off version of Jason's patch as well as two follow-ups:

- teaching Clark Kent how to set the application name
- adding release notes

  http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/gmcharlt/lp1492793_pg_app_name

[Galen Charlton (gmc)]

No additional live tests are included, intentionally, as an issue with this feature would almost certainly manifest itself pretty clearly as an inability to connect to the database.

[Mike Rylander (mrylander)]

Merged to master for 2.10 goodness. Thanks, Jason and Galen!