added error checks and auto-retry on RexTFV packing failures
better error message for rextfv packing error
removed unnecessary sleep
fixed a bug that RexTFV status window did not display the status
Merge pull request #630 from t-gerhard/bugfix

fixed a bug that RexTFV status window did not display the status
better structure for the 3-time-trial of tar packing
Fixed identation
Merge pull request #628 from t-gerhard/rextfv_packing

Rextfv packing
New help pages
Fix task running twice in parallel
Merge pull request #631 from dswd/help_pages

New help pages
Merge pull request #633 from dswd/fix_tasks

Fix task running twice in parallel
Fixed switches
Merge pull request #638 from dswd/fix-switches

Fixed switches
Fixed packet capturing
Merge pull request #640 from dswd/fix-capture

Fixed packet capturing
Removed duplicate component sync call
Fixed colors of downloads in tutorials
Fixed uploads after first upload
Fixed tasks that only run once