v0.1.2

Fixes

• Generated profile ids could exceed Chrome's rule-id range after importing a
  profile at the maximum id, which caused every subsequent rule update to fail
  silently. Ids are now allocated from the lowest free value.
• Duplicate domains within a profile were stored, displayed and exported as
  duplicates, so the chip list and the domain count disagreed on screen.
  Domains are now deduplicated, which brings the exported file into line with
  the set semantics the format already specified. No conforming file's bytes
  change.
• Imports larger than Chrome's 5,000-rule limit were accepted and silently
  truncated, applying fewer rules than configured while reporting success.
  Over-cap imports are now refused with an exact reason, and profiles can no
  longer be added past the limit.
• The popup showed stale status while open: a sync failure arriving after the
  popup rendered left it reporting that rules were applying. It now updates in
  place.
• Deleting a profile now asks for confirmation. Delete is unrecoverable and
  was the only destructive action without one.
• Exporting now states that header values are saved in plain text.