Merge branch 'hotfix/3550'

Close #3550
Fixes #3541
Fixed an issue where disconnecting caused issues with send reinstanciating the connection
Fix: Calling count() results in infinite loop
Zend\Db
- fix composer to reflect stdlib is suggested, not required
Test added for count() in KeyListIterator
Flash Messenger fixes for PHP < 5.4, and fix for default namespacing when calling $this->flashMessenger()->render()
Zend\Db IbmDb2 & Oracle Drivers
- Added platform_options to Adapter for passing onto Platform objects
- Added ability to not-quote identifiers in IbmDb2 and Oracle
- Fixed automatic uppercasing in fragment quoting of Oracle Platform
- Added Tests for platform objects
- Deprecated the createDriverFromParameters() and createPlatformFormDriver methods
Merge branch 'hotfix/3561' into develop

Close #3561
Merge branch 'master' of git://github.com/bramstroker/zf2 into hotfix/3562
Merge branch 'hotfix/3562'

Close #3562
Merge branch 'hotfix/3562' into develop

Forward port #3562
Merge branch 'hotfix/db-composerfix' of git://github.com/ralphschindler/zf2 into hotfix/3563
Merge branch 'hotfix/3563'

Close #3563
Merge branch 'hotfix/3563' into develop

Forward port #3563
Merge branch 'hotfix/flash-messenger-default-render-botched' of git://github.com/mwillbanks/zf2 into hotfix/3566
Merge branch 'hotfix/3566' into develop

Close #3566
Merge branch 'feature/db-adapter-platform-options' of git://github.com/ralphschindler/zf2 into hotfix/3567
[#3567] Fixed CS

- Moved closing paren to next line for multi-line conditionals
Merge branch 'hotfix/3567' into develop

Close #3567
Correctly parse empty Subject header

Without this fix parsing an email with an empty subject header "Subject:" fails.

Fatal error: Uncaught exception 'Zend\Mail\Header\Exception\InvalidArgumentException' with message 'Invalid header line for Subject string' in library/Zend/Mail/Header/Subject.php:39