Take care about MariaDB versioning
Added doModifyLimitQuery for SQLServer2012Platform that uses OFFSET... FETCH instead of the awful SQL Server 2008 window function garbage
Added test for from (subquery) with order by, as the ORM would generate it
Improved SQLServer2012Platform and tests per @stof's comments
Check for changed fixed option added in PostgreSqlPlatform
unittest for fixed string alteration added
unittest group added to testcase for the fix
Simplified doModifyLimitQuery per @deeky666 comments, added test case for orderby with parenthetical expression
One last nitpick from @deeky666
And another last nitpick :)
Merge pull request #745 from zeroedin-bill/sqlserver-2012-offset-limit

Added doModifyLimitQuery for SQLServer2012Platform that uses OFFSET... FETCH
Merge pull request #742 from nlegoff/mysql-version-detection

Take care about mariadb platform
unittest adapted for all plattforms using AbstractPlatformTestCase
Merge pull request #754 from SenseException/fixed-string-changedcolumns

[DBAL-1090] Changing string to fixed string is not recognized in PostgreSQL Platform
fix renaming indexes used by foreign key constraints