Major changes to ColumnSchema

Remove ColumnSchema->binary, ColumnSchema->multipleKey,
ColumnSchema->year, ColumnSchema->autoIncrement
Replaced binary with blob
Removed required property from make script
Modify ActiveRecord::form() no longer skips blob, pkey fields
Remove MSSQLDataAdapter old version
Add new version of MSSQLDataAdapter
Modify DataAdapter to support PDO connection strings
Modify application schema to support PDO connection strings