Changes to support refactor in frappe pg-poc branch (#15287)

* Remove quotes from sql to make it compatible with postgres as well

* Fix queries
- Replace mysql specifc queries with standard ones

* Make repo URL chages to test pg-poc

* Add root passowrd to test site config

* Fix quotes issue

* Remove debug flag from a pricing rule query

* Remove python 3.6 version from travis.yml

* Fix improper query issue

* Fix incorrect query

* Fix a query

- This fix need to be changed when we will  start supporting postgres
since date_format is not supported by postgres

* Get price list map as dict

* Convert price_list_currency_map to dict

erpnext/patches/v8_0/create_domain_docs.py

@@ -22,7 +22,7 @@ def execute():
 	condition = ""
 	company = erpnext.get_default_company()
 	if company:
-		condition = " and name='{0}'".format(frappe.db.escape(company))
+		condition = " and name={0}".format(frappe.db.escape(company))
 
 	domains = frappe.db.sql_list("select distinct domain from `tabCompany` where domain != 'Other' {0}".format(condition))