fix driverOptions not working

driverOptions may not be array of array
Merge pull request #157 from ertko/patch-1

fix driverOptions not working
test for php 5.5!
Merge branch '0.2.x-dev' of github.com:robmorgan/phinx into 0.2.x-dev
adding scrutinizer support
add code coverage badge
escape underscores
PDO Adapter: Display Raw SQL when verbose flag is given
PDO Adapter: Whitespace cleanup
Column.php: Allow 'default' value to be a blank string
Column.php: Whitespace cleanup
Update composer.json with new name and additional author