Release v1.5.0

• Support for Google Docs annotated canvas.
  Note that this does not yet work in Safari due to Safari bug 232781.
• Hide senses that don't apply to the looked-up text.
• Show the age next to names for people with birth dates.
• Allow setting the hold to show keys in active tab mode too (Safari) #818.
• Replace "(tm)" text with ™.
• Stop showing the popup for number-only matches in the name dictionary (e.g. 64) #811.
• Fix formatting of options page on Firefox for Android (Nightly).