Begin with SqlServer adaptor, including tests. Currently table creation works
Fix some postgre and mysql left over things from copying
Finalise sqlserver adapter
Fix issue with finding autoloader if vendor/bin/phinx is run instead of vendor/robmorgan/phinx/bin
Forgot to add sql server adaptor to list of available adaptors
Fix transaction support on sql server
Add uuid to supported sqlserver columns
Fix issue with adding migration version into log table
Proxy adapter should use the adaptors columnTypes
Should clearout the list of commenting columns on each run
Fix issue with dropping foreign keys
Proxy adapter should give access to the connection
Moves a MySQL-specific method to the MySQL adapter from the PDO adapter.
Correct issue with altering column defaults
Add support for sqlserver filestreams.

Also added ability to add extended properties to columns
Fix undefined variable error
Fix issue with dropping constraint that does not exist
Rename default constraint when the column gets renamed
Allow dropping of default constraint
being to use appveyor to test sqlsrv builds in windows