Downloads - adde segment-size option and propogate it to Jobs
Downloads - replace RetrievalDownloadJob with SingleDownloadJob
Downloads - SegmentDownloadJob and tests
Downloads - improve test for SegmentDownloadJob
Downloads - typo fixed upload_size renamed to download_size
Downloads - support in GlacierRequest added
Downloads - segment download implemeted and working (initial version)
Downloads - use sysopen instead of hacks with open
Downloads - fix FSM issue
Downloads - close file after request
Downloads - fix tests
Downloads - implement via templ file
Bug fixed mtime() function after file download was not called with binaryfilename()
typo fixed
Graceful handle SIGHUP
Downloads - check at least treehash header presents when do segment downloads
Downloads - use tempfile for all files, even non-segment downloads
Tests - fix warnings on some perl versions
Downloads - documentation
Downloads - try to fix networking/file issue

write data tmp parts file, use flock, cehck additional headers, check for x-died, truncate file in the beginning