Increment project version to v1.0.20.
Increment project version to v1.0.20.

parksandwildlife/oim-cms,scottp-dpaw/oim-cms,rockychen-dpaw/oim-cms,scottp-dpaw/oim-cms,rockychen-dpaw/oim-cms,rockychen-dpaw/oim-cms,parksandwildlife/oim-cms,scottp-dpaw/oim-cms,parksandwildlife/oim-cms