Take a stab at fixing apostrophe escaping.
Take a stab at fixing apostrophe escaping.

The previous implementation would persist double apostrophes. I suspect
this may have been broken by a new major release of postgres in the 6+
years since it was written in https://github.com/tlconnor/activerecord-postgres-array

Fixes https://github.com/seamusabshere/upsert/issues/120
pnomolos/upsert,seamusabshere/upsert,pnomolos/upsert,seamusabshere/upsert