Fixed a bug where links where not adjusted correctly at collapse/expand when modifying the position with dragging.
Removed links from analysis dom element groups and placed them into the canvas root dom element, as they will be drawn after certain nodes resulting in not occluding link endings by circles.
Analysis super nodes are now represented as hexagon primitives to better distinct collapsed analysis.
Debugging prototype layout.
Add exception handling to run_analysis_execution().
Replace delete_galaxy_library(), delete_galaxy_workflow() and delete_galaxy_history() with cleanup() in Analysis model
Improve error reporting. Code cleanup.
Merge branch 'develop' into bioblend