Merge branch 'fix/#2511-#2609-correct-identifier-and-data-type-collisions-in-list-type-extraction' into 2.5

Close #2511
Close #2609

Close #2608
Close #2586

Minor code cleanup for efficiency, and tests to check the order by clause scrubbing is working correctly and not entering an infinite loop

Allow doctrine/common 2.7

Merge branch 'fix/#2318-fix-listing-table-columns-when-using-external-or-os-authentication-on-oracledb-2.5' into 2.5

Close #2318
Close DBAL-831

Close #2302
Close #2303

fixes #2302

Close #2287
Close #1183

- includes extended default driver connection parameter handling
- minor refactoring

fixes #1183

Close #2182
Close #2277
Close DBAL-939

- fixes platform's COMMENT ON statement support
- implements reverse engineering for column comments
- marks boolean column type commented for distinction

fixes #2182

Merge branch 'fix/#2500-#2497-return-false-from-mysqli-statement-when-nothing-is-fetched-2.5' into 2.5

Close #2500
Close #2497

Allow usage of symfony/console ^3.0 in dev dependencies

Some packages are using symfony/console 3.0 and newer as requirement, and doctrine/dbal works well with this contstrain.

Close #2292

fixes #2291

Close #2286