zjsunit: Add __jquery to objects.
zjsunit: Add __jquery to objects.

This makes it a bit easier to decipher issues
with assert.deepEqual() failing. And we can
use it for introspection.

hackerkid/zulip,kou/zulip,rht/zulip,andersk/zulip,rht/zulip,andersk/zulip,andersk/zulip,eeshangarg/zulip,kou/zulip,zulip/zulip,andersk/zulip,punchagan/zulip,punchagan/zulip,rht/zulip,zulip/zulip,punchagan/zulip,hackerkid/zulip,eeshangarg/zulip,eeshangarg/zulip,eeshangarg/zulip,hackerkid/zulip,punchagan/zulip,kou/zulip,kou/zulip,hackerkid/zulip,hackerkid/zulip,zulip/zulip,hackerkid/zulip,rht/zulip,zulip/zulip,kou/zulip,zulip/zulip,kou/zulip,zulip/zulip,rht/zulip,rht/zulip,punchagan/zulip,andersk/zulip,eeshangarg/zulip,punchagan/zulip,andersk/zulip,zulip/zulip,andersk/zulip,kou/zulip,eeshangarg/zulip,hackerkid/zulip,rht/zulip,punchagan/zulip,eeshangarg/zulip