Portability wrapper _defaultFetchMode

Added support for namespace/schema quoting if it is a reserved keyword.

support schema creation for psql platform

Add hour to DATE_ADD and DATE_SUB

fix some files mode bug 755->644

Update DecimalType.php

The "decimal" mapping type does not map to float/double anymore:
https://github.com/doctrine/dbal/commit/9f51afa210d5c0165dfe6c622e07e42aa54c09fb#lib/Doctrine/DBAL/Types/DecimalType.php

Thank you.

Fixed PRAGMA calls that were missing quotes for non-standard table names

Fixed typos in code samples

The method executeCachedQuery was being called rather than executeCacheQuery.

Update SQLServer2008Platform.php (support  MS SQL Server type datetimeoffset(6))

Added regression test for the Portability Wrapper when setting the defaultFetchMode on the Connection instead of the Statement

Portability wrapper did not properly use the _defaultFetchMode when the method setFetchMode() was used on the Connection

Added support of  maps a Doctrine datetimetz type to a MS SQL SERVER type datetimeoffset(6)

Removed an unused method in AbstractPlatform.

Documentation fixes

- Fixed docblocks
- Removed return statements on void methods
- Cleaned up unused private / local variables
- Fixed license issues
- Removed SVN leftovers
- Fixed doctrine-project.org links
- Added line breaks before return statements

Fix foreign table name quotation in schema table and Sqlite platform

Introduced BC break with databases that switch from case-insensitive
to case-senstive handling when identifier quoting is enabled.

This reverts commit 11111bd7.

Quoting table name

[DBAL-374] Fix asset identfier quotation