Token - tests that token is always optional
move token to @config_opts, but make sure it's optional
cleanup
Merge branch 'master' into master_fixes
Tests - move common code for capturing stdout/stderr
GlacierRequest - Regression tests for HTTP error handling
typo fix
GlacierRequest - error handling - improvements in tests
Tests - Glacier request - improve test for 2xx codes
Tests - assert_raises_exception implemented
test typo fix
GlacierRequest - raise exception in case of > 100 retries
GlacierReques - exception implemented unexpected reply (codes 400 etc)
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)