Update Db.php

Fixing query building when origin multiline query has few lines which starts from beginning of a lines. Example: 
`CREATE  FUNCTION `functionName`(id INT) RETURNS varchar(100) CHARSET utf8
BEGIN`
converted to 
`CREATE  FUNCTION `functionName`(id INT) RETURNS varchar(100) CHARSET utf8BEGIN`
Update Db.php
Merge pull request #459 from sectus/patch-1

Update Db.php
fix typo "testGuy" -> "webGuy" in the chapter about pageObject actions

There was a confusion between 'webGuy' and 'testGuy' in the chapter about actions in pageObject.
Protected property $webGuy was declared but in method 'login' we had:
$I = $this->testGuy;
Merge branch '1.6'
Merge branch 'master' of github.com:Codeception/Codeception
readme
fix to stupid PHPStorm refactoring advice which renamed fixture in a test :(
proper table added to readme
proper table added to readme
proper table added to readme
Merge branch '1.6'
Merge pull request #460 from shofel/master

fix typo "testGuy" -> "webGuy" in the chapter about pageObject actions
Fix docs Customization#Group-Classes
Merge pull request #464 from jamband/docsSpike

Fix docs Customization#Group-Classes
Merge branch 'upstream_1.6' into upstream
small improv to debug mode for PhpBrowser