FIX: CLO-4333 - CloverDataReader: Switching from a file with UTF8 serialization to one with default serialization fixed.

git-svn-id: https://svn.javlin.eu/svn/cloveretl.opensource/trunk-4-0@16288 a09ad3ba-1a0f-0410-b1b9-c67202f10d70
FIX: CLO-4333 - CloverDataReader: Discrete input port reading 3.5 format fixed.

git-svn-id: https://svn.javlin.eu/svn/cloveretl.opensource/trunk-4-0@16289 a09ad3ba-1a0f-0410-b1b9-c67202f10d70
FIX: CLO-4404 - Improve FTP connection error reporting

JUnit test

git-svn-id: https://svn.javlin.eu/svn/cloveretl.opensource/trunk-4-0@16291 a09ad3ba-1a0f-0410-b1b9-c67202f10d70