Changing the MoveMasterContentTypeData migration to use the fluent Update statement with dynamic entries from the database.
Adding IfDatabase condition for Update.
Updating a few tests, which were using the MigrationContext.
Refactoring the current sql syntax providers to better work with sql ce, sql server and mysql.
Adding migrations for v4.8 and v6.0.
Adding test cases for upgrading from 4.7 to 6.0 for the 3 database providers - sql ce, sql server and mysql.
Adding product name to the MigrationAttribute, which adds more flexibility to the MigrationRunner.
Fixing schema creation for mysql, which broke during a previous refactor task.
