deploy: Set LC_COLLATE to 'C'

Update postgresql default template ('template1'), to have LC_COLLATE='C'
and LC_CTYPE='C'. This is needed for test database that is created from
django, without the ability to set a different template.

snf-deploy/files/tmp/db-init.psql

+UPDATE pg_database SET datctype='C', datcollate='C' WHERE datname='template1';
+
 CREATE USER %SYNNEFO_USER% WITH PASSWORD '%SYNNEFO_DB_PASSWD%' CREATEDB;
 
 CREATE DATABASE snf_apps WITH ENCODING 'UTF8' LC_COLLATE='C' LC_CTYPE='C' TEMPLATE=template0 OWNER=%SYNNEFO_USER%;