#6209 - Update test case so it actually tests the thing it should be testing
Fix parameter format causing duplicate mails

Recently I've experienced mails being duplicated and send to the sender when using the sendmail transport. After consulting my hosting company they told me there shouldn't been a space between "-f" and the envelope sender address. Removing the space character fixed the problem. No more duplicated mails being send to the sender.

Furthermore I tested Swiftmailer and its sendmail transport layer. Absolutely no problems with it.

Looking at the php docs there isn't a space character either, see http://www.php.net/manual/en/function.mail.php#example-3471. Furthermore I found http://stackoverflow.com/questions/4205228/basic-mail-function-php-additional-f-parameter-question and consulted the sendmail docs too: http://www.sendmail.org/~ca/email/man/sendmail.html.

However, there are other examples around with a space character: http://stackoverflow.com/questions/179014/how-to-change-envelope-from-address-using-php-mail. Are they wrong?

Since I'm not familiar with sendmail but actually trusting my hosting company I'm proposing to remove the space character.
Update SendmailTest.php
Added the limit, offset support to DB2
Fixed some php-cs issues
Fixed and simplified the ROW_NUMBER() usage for DB2
Fixes #6467
Remove the FIRST FETCH ROW ONLY and refactored the DB2 pagination
Added the transactions support for DB2
Merge pull request #6446 from ezimuel/fix/#6445

Fix for #6445, adding pagination and transaction to IBM DB2 for Zend\Db
[#6446] CS + Review

- Formatted several conditionals to 1 per line
- Formatted several arrays to 1 per line
- Removed unnecessary whitespace
- Slight logic modifications for readability, consistency
- Ensured docblocks are correct
Merge branch 'hotfix/6446'

Close #6446
Fixes #6445
Fix Zend/Barcode composer.json to require zendframework/zend-validator.

We also explain why zendframework/zend-servicemanager is suggested.

zendframework/zend-validator is needed because all barcodes are validated using
Zend\Validator\Barcode prior to drawing.

zendframework/zend-servicemanager is suggested because it’s needed when using
the factory methods to create or render a barcode.
Merge branch 'hotfix/#6310-fix-#6293-zend-barcode-dependencies'

Close #6310
Close #6293
Add body to curl DELETE request if one is specified. The header will be there. Fixes issue #6315 (https://github.com/zendframework/zf2/issues/6315)
Merge branch 'hotfix/#6318-fix-#6315-add-body-to-curl-delete-request'

Close #6318
Close #6315
[BUGFIX] missing Zend XML-RPC support library
Merge branch 'hotfix/#6170-zend-xml-dependency-for-zend-xmlrpc'

Close #6170
Fix for odd php-cs-fixer finds
Merge branch 'hotfix/#6462-fix-phpcs-reported-errors'

Close #6462