Force autocommit, except for scalar connection (should help DBA-1178)

src/main/java/ArchivingManager/ArchivingManager.java

src/main/java/Common/Watcher/AbsArchivingWatcher.java

src/main/java/HdbArchiver/Collector/DbProxy.java

src/main/java/HdbExtractor/Proxy/DbProxy.java

src/main/java/TdbArchiver/Collector/DbProxy.java

src/main/java/TdbArchiver/TdbCleaner.java

src/main/java/TdbExtractor/Proxy/DbProxy.java