[fixes #47768559] Save draft before teardown, while the content still exists
[fix #47665527] fix breadcrumb url for hdfs data source when viewing a file
[fix #47919029] quote attribute values in jquery selectors
[#47409431] NULL values are not included when computing boxplot quartiles.
[#47409431] Increase readability of boxplot calculation SQL
[#47409431] Remove total count associated with each ntile, since it was unused
[#47409431] Refactored boxplot summary class
[#47409431] Enforce the raising of an exception when a boxplot is created with the same x and y axes
[#47409431] Rename bins to buckets for boxplot, for consistency with frequency plot