Release v1.2.0: Reviewer #2 suggests making charts larger

Major features

• Annotators can now revise the annotations of other annotators (if allowed in project settings)
  • Every revision is saved as a separate entry, linked to the original annotations. Only the revised fields are stored to optimize the storage space.
• Improved editing pane
  • All previously submitted annotations are now searchable in the editing pane.
  • The annotations that are believed to have been saved incorrectly can now be flagged.
• Charts in data explorer are now being handled asynchronously on back-end as well using Redis - Celery configuration. No more hanging pages while someone else has opened data explorer!
• Updated the survey functionality:
  • sliders can now be used as question types
  • each category in the survey can used as an independent sub-survey, allowing, for instance, to create a number of batches of questions, assign each batch to its own category, and then assign each category randomly to a participant

Minor features

• New project settings:
  • allow_reviewing -- this is the setting that turns on reviewing possibility
  • editing_title_regex supplies the regular expression to be used for searching the annotated texts and using the first found result as a title of the batches to be edited
  • editing_as_revision basically disallows modifying the data directly. By default editing happens directly in the annotated objects. If this setting is turned on, the original objects will remain intact and separate reivison objects will be created.

QoL features

• The chart that provides statistics on the lengths of inputs and labels will now only count the meaningful ones, excluding the inputs with fixed pre-defined length, e.g., radio buttons, checkboxes

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Fixed issues: #8 , #9 , #10 , #11 , #12 , #13 , #14 , #15 , #16 , #18 , #19
Full Changelog: v1.1.0...v1.2.0