v4.7.3

Allow editing foreign keys pointing to tables in other database/schema (bug #694)
Fix blocking of concurrent instances in PHP >7.2 (bug #703)
MySQL: Speed up displaying tables in large databases (bug #700, regression from 4.7.2)
MySQL: Allow editing rows identified by negative floats (bug #695)
MySQL: Skip editing generated columns
SQLite: Quote strings stored in integer columns in export (bug #696)
SQLite: Handle error in altering table (bug #697)
SQLite: Allow setting auto increment for empty tables
SQLite: Preserve auto increment when recreating table
MS SQL: Support foreign keys to other DB
MongoDB: Allow setting authSource from environment variable