StringUtils: MbString wrapper use of 'mb_list_encodings'
Updated Zend\Text to use StringUtils and deprecated Zend\Text\MultiByte
Updated Zend\Feed to use StringUtils
Forward port #3101
Forward #3097 #3099
Forward port #3100
Forward port #3065
Forward port #3053
Forward port #3043
Forward port #3068
Forward port #3040
Zend\Feed: replaced one iconv_strlen with a string wrapper
FIXME: Converting the euro sign from UTF-8 to ISO-8859-16 using the mbstring extension gives a wrong result
removed trailing spaces
Merge branch 'hotfix/3117' into develop
Forward port #3117
Tests for Zend\Cache\Storage\Adapter\MemcachedResourceManager
Forward port #3063
updated send response workflow

- implemented changes proposed by weierophinney
- reverted changes in Console\Response and PhpEnvironment\Response objects
- added Zend\Mvc\View\SendResponseListener extending the new class
- added ResponseListenerFactory
- Response sender triggers events
removed debug calls
Forward #3129 #3131 #3132 #3133