fix some assertion and CS in schema manager functional tests
fix parsing SQL Server bracket delimiters in SQL statements
implement ExceptionConverterDriver in Oracle drivers
set expected exception in connection exception test
Merge pull request #483 from deeky666/fix-sql-parser-for-sql-server

Fix parsing SQL Server bracket delimiters in SQL statements
Merge pull request #484 from deeky666/implement-oracle-exception-driver-converter

Implement ExceptionConverterDriver in Oracle drivers
Merge pull request #482 from deeky666/fix-schema-manager-test-cs

Fix some assertion and CS in schema manager functional tests
[DBAL-752] Implement general fix to detect unsigned SQLite columns.
Merge branch 'DBAL-752'
[DBAL-590] Remove Column#visit(). The table is responsible for this, because of dependencies.
Fix bug in testsuite where extending from another test causes those tests to be skipped.
Fix more occurances of the extending Test bug, "reactivating" a total of 200 tests. SQLAnywhere is missing and is a bit more annyoing to fix, because of a deep inheritance hierachy.
[DBAL-630] Try reproducing bool with emulated prepares without much success.
Merge branch 'DBAL-630'
Fix test to run on Travis
[DBAL-756] Add new method AbstractPlatform#getVendor().
[DBAL-630] skip test aslong as failure case is not fully understood.
Fix version
Release 2.5.0-BETA2
Bump version to 2.5.0-DEV