framework for easy creation of Enterprise Application Integration tasks

Changes for 1.902

• made changing to remoteDirs configurable for hosts where direct changing is not possible with setting noDirectRemoteDirChange to 1, allow adding additional Net::SFTP::Foreign params to EAI::FTP:😛utFile using additionalParams, added possibility to put multiple localFiles with EAI::FTP:😛utFile, generalized getSensInfo into getKeyInfo, allowing also prefixed (environment respecting) key information from DB, FTP, etc. subhashes, currently used for getting $DB{DSN} and $FTP{remoteHost}, improved argument checking and logging in sendGeneralMail