Move username login hint to separate template

[Jeff Davis]

On the OPAC login page, the password hint ("If this is your first time logging in...") is broken out into a separate TT2 file to make it easier to customize the hint text. We should do the same for the username/barcode hint ("Please include leading zeros..."), which is equally library-specific.

This affects EG master and all supported releases.

[Jeff Davis (jdavis-sitka)]

Working branch user/jeffdavis/lp1732552-login-username-hint has a trivial implementation of this trivial feature request:

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=commitdiff;h=bf83031d

[Jane Sandberg (sandbergja)]

This looks great, Jeff. It would be helpful to include a short release note so that folks know to move any custom text to username_hint.tt2 during the upgrade process.

[Jeff Davis (jdavis-sitka)]

Rebased to master, release notes added:

working/user/jeffdavis/lp1732552-login-username-hint-rebased

[Bill Erickson (berick)]

Does what it says. Thanks, Jeff. Merged to master.