v0.16.0

Added

• ER diagram: a read-only, pannable/zoomable map of the schema - every table a
  box (columns marked PK/FK), every foreign key a connector. Open it from the
  schema panel's diagram button, the Query menu, or the command palette
  (schema: ER diagram). Drag boxes to arrange, scroll to pan, ⌘/Ctrl+scroll to
  zoom, Fit to frame it all; double-click a table to browse it.
• Format SQL: beautify the editor's query in place (⌥⌘F, the Query menu, or the
  command palette) - re-indents, upper-cases keywords, and puts each clause on
  its own line.
• Export a result as SQL INSERT statements (Export -> SQL). The table name comes
  from the file you save to.
• Import a .json file that holds a single top-level array of objects, not only
  newline-delimited JSON.

Changed

• Schema tree: a single click now acts on the row.
• Query history: click an entry to open it in a new query tab; ⌘/Ctrl-click to
  replace the current tab's editor instead. Nothing runs until you do, so a past
  write is never re-executed by a click.

Fixed

• Result grid: a cell holding multi-line text (embedded newlines, tabs, or other
  control characters) now shows its beginning on a single line, instead of a
  vertically-centered slice from the middle of the value. The full text is still
  available by copying the cell or opening it in the detail inspector.