refactor, consolidate and extend driver exception conversion
fix DBAL-630 ticket functional test
fix DBAL-630 ticket functional test
remove unused use statement
fix DataAccess test on HHVM
Add dependency badge to the README
add travis build matrix for all built-in PostgreSQL versions
Remove 2.2 branch from the master branch README because it is not maintained anymore
Fix little typo for trvisci badge
Merge pull request #497 from reiz/master

Add dependency badge to the README
exclude unsupported HHVM + PostgreSQL and HHVM + Mysqli from travis build matrix for now
Merge pull request #501 from deeky666/disable-travis-hhvm-unsupported-drivers

Exclude HHVM + PostgreSQL and HHVM + Mysqli from travis build matrix
Merge pull request #498 from deeky666/add-travis-postgresql-versions-build-matrix

Add travis build matrix for all built-in PostgreSQL versions
Merge pull request #495 from deeky666/fix-hhvm-data-access-test

Fix DataAccess test on HHVM
add SMALLSERIAL type support on PostgreSQL 9.2 platform
fix integer type declaration SQL on SQLite
add more specific types and column asset documentation
fix unique indexes in CREATE TABLE statements on SQL Anywhere
fix evaluation of NOLOCK table hint on SQL Server
fix table lock hints on SQL Anywhere