Evergreen/PostgreSQL 9.4 support

[Chris Sharp]

PostgreSQL 9.4 brings a number of desirable features for Evergreen system administrators (release notes: http://www.postgresql.org/docs/9.4/static/release-9-4.html). I'm creating a placeholder bug for incorporating PostgreSQL 9.4 installation (on Debian jessie and Ubuntu 14.04). Working branch to follow.

[Chris Sharp (chrissharp123)]

...and I see that Debian jessie is already using PostgreSQL 9.4, so I guess I'm really just doing this for Ubuntu trusty.

[Chris Sharp (chrissharp123)]

And here's the branch. http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/csharp/lp1493824_postgresql_94_support. It needs testing, so all eyes appreciated!

[Ben Shum (bshum)]

Interesting approach with the Makefile target and automatically adding the PostgreSQL community apt repository. I like it, but haven't fully tested it quite yet.

Marking this bug as "wishlist" since it'll be a new feature and targeting it towards 2.next for future review/inclusion.

[Chris Sharp (chrissharp123)]

I just tested on a fresh 14.04 install and it ran without any warnings. I haven't yet ensured that Evergreen runs on it, however, so that's next.

[Ben Shum (bshum)]

Taking over this bug and changing it to target PG 9.4 as the baseline version for all distributions that need it (at present, Debian Wheezy and Ubuntu Trusty)

See beginnings of this work in collab branch: collab/dyrcona/wheezy-pg94-testing

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/collab/dyrcona/wheezy-pg94-testing

Need to add Trusty target changes, and then modify README and other documentation to support the change of minimum/recommended PostgreSQL version.

[Ben Shum (bshum)]

New changes pushed to working branch: collab/bshum/PG94-testing

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/collab/bshum/PG94-testing

This includes wording changes for the README to reflect a position where PG 9.4 becomes the default recommended version. Assuming that http://markmail.org/message/bmtha5irlgev5hjc passes the developer vote later.

And also changes to make PG 9.4 the default for Ubuntu Trusty.

[Jason Stephenson (jstephenson)]

I tested everything again on Trusty and Wheezy and stuff works.

I rebased the branch on master, squashed it into 1 commit, rewrote the commit message(s) to be more coherent, and added credit where credit is due. Ben already credited Chris Sharp, but since Ben is now the author of the only commit on the branch, I added a blurb about what I did beyond testing.

The hopefully final branch is at working/collab/dyrcona/lp1493824-PG94-install

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/collab/dyrcona/lp1493824-PG94-install

I thought we'd wait to hear from the 2.12 RM before pushing this to master.