Resolve "Admin panel - Add project - remove columns "Root map" and "Mapping file""

Closes #700

See merge request !748

Merge branch '776-when-no-default-zoom-level-is-provided-compute-something-reasonable-instead-of-max-zoom-out' into 'master'

Resolve "when no default zoom level is provided compute something reasonable (instead of max zoom out)"

Closes #776

See merge request !747

Merge branch '789-sort-the-lists-of-elements-generic-reactions-select-annotators-and-select-valid-annotators' into 'master'

Resolve "Sort the lists of elements / generic reactions Select annotators and Select valid annotators"

Closes #789

See merge request !745

Resolve "freeze top bar of plugin panel in case multiple plugins are loaded"

Closes #758

See merge request !741

Merge 12.2.2

See merge request !744

Resolve "Internet Explorer on Win10"

See merge request minerva/core!742

Fixing situation when Molart started with variation overlay not having the aa change information

See merge request !740

Merge branch '674-when-creating-a-project-or-user-that-already-exists-return-proper-http-status-code' into 'master'

Resolve "when creating a project or user that already exists return proper http status code"

Closes #674

See merge request !738

Resolve "list of reaction"

Closes #615

See merge request minerva/core!737

Resolve "automatic Refresh - it would be nice to have"

Closes #610

See merge request minerva/core!736