[2.0] DDC-169 - Finished ALTER Table TableDiff refactoring, adding code to handle index and FK changes. Added a general functional test for alter table against all platforms.

[2.0] DDC-169 - AbstractPlatform::getAlterTableSql() now accepts only a TableDiff instance as argument across all platforms.

[2.0] DDC-169 - Add functionality to detect that an add + drop column diff is actually just a rename column.

[2.0] DDC-169 - Stripped case handling since its just a load of complex crap and doesn't solve any problem! Idea: just implement case-insensitivity in the comparator.

[2.0] DDC-169 - Added possibility to control which case mode schema assets are created with in SchemaManager

[2.0] DDC-186 - Fixed DatabaseDriver to work with new Schema abstraction, added functional test-cases for database to yaml convertion.

[2.0] DDC-186 - Fixed SchemaTool indexes behaviour, changed a functional/integration model to use one index for test-coverage.

[2.0] DDC-191 - Added test that verifies mixed case identifier generation is default, when no case mode is set due to previous commit for DDC-169 ticket.

[2.0] DDC-169 - Introduced handling of schema / database case-sensitivity differences and to allow compability between different platforms.

[2.0] DDC-169 - Changed AbstractPlatform and AbstractSchemaManager Constraint API to accept Constraint interface, which is implemented by indexes and foreign keys.

[2.0] DDC-169 - Changed AbstractPlatform and AbstractSchemaManager and children to accept Sequences in their create and get sql methods.

[2.0] DDC-169 - Changed AbstractPlatform and AbstractSchemaManager and children to accept Table, Index and ForeignKey instances for the respective create*() methods.

[2.0] DC-169 - New method AbstractSchemaManager::createSchema() which creates a schema instance with full tables and sequences, additionally listTables() was rewritten to return a full Table instance instead of just the table names.

[2.0] DDC-169 - Fix build, Postgres, Oracle and Sqlite made some minor troubles with regards to sequences.

[2.0] DDC-169 - Converted introspection queries of all platforms to return Column, Sequence, Index, ForeignKey Schema Instances instead of arrays, heavily pimped Oracle support thereby.

[2.0] DDC-169 - Finalized implementation of Schema diff algorithm, added diffs of sequences and foreign keys. Fixed several bugs and changed the API of the Schema objects.

[2.0] - DDC-169 - Fixed another regression in refactored SchemaTool, began porting of eZ Components Database Schema Comparator, SchemaDiff and TableDiff.

[2.0] - DDC-169 - Refactored lots of sections with duplicate code in gather relations part of SchemaTool::getCreateSql()

[2.0] - DDC-169 - Completed refactoring of SchemaTool::getCreateSql() to use new DBAL Schema API, several internal optimizations in SchemaTool are now possible. Stripped out shared functionality with getUpdateSql() so that this part of SchemaTool is still completly working with the old API.

[2.0] DDC-169 - Savepoint for Refactorings in Schema-Tool - It is now generating DDL according to the old and the new mechanisms in parallel. Equality of generation has been verified on Sqlite, Mysql, Oracle. If Postgres is also verified, the old code will be removed in favour of the new one completly.

[2.0] - DDC-169 - Added DropSchemaSql Visitor - Refactored Visitor package a bit, however its still not very appealing to have that much use statements cluttered in the code

[2.0] - DDC-169 - Added DropSchemaSql Visitor - Refactored Visitor package a bit, however its still not very appealing to have that much use statements cluttered in the code