Upgrade jQuery validation version to v1.19.1

[seamuslee001]

Overview

Upgrades JQuery validate version to 1.19.1

Before

older version of jQuery validate used

After

latest version of JQuery validate used

ping @mattwire @colemanw @mlutfy

[civibot]

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[mattwire]

test this please

[mattwire]

Thanks @seamuslee001 I'm happy to merge this but I also proposed it so we should get a couple of "I've tested this and it's fine" (it should not make any real difference at this point but nothing should break).
jquery validation is available on contribution/event registration forms but won't normally run unless triggered. You can do that by running CRM.$('#Main').valid() on a contribution page for example and it should display errors next to any invalid fields (basically just required fields that don't have values).

[yashodha]

test this please

[seamuslee001]

Jenkins re test this please

[yashodha]

test failure looks unrelated

[yashodha]

test this please

[colemanw]

test this please