v1.0.40

Fix bug where previously-deleted contacts are re-added to left pane on
contact import (#1811)

Fix bug where the main window would be created off-screen, inaccessible
(#1830)

Fix issue where certain sync messages to iOS would result in a new
message alert (#1843 and #1857))

Key rotation updates (#1833 and #1846):
  - Save prekeys optimistically after generation, even if upload appears
    to fail
  - Track confirmations from server in prekey
  - New prekey cleanup behavior: favoring confirmed keys, but always
    keeping three
  - Log all failures resulting from signed prekey rotation
  - Retry rotation if we run into a failure
  - Force rotation when starting up new version, to fix Chrome
    interference (https://github.com/WhisperSystems/Signal-Desktop/releases/tag/v0.44.13)

Dev:
  - Verify that saved window location/size data is valid before creating
    window (#1830)
  - A variety of logging improvements to help track down bugs (#1832 and
    #1836)

package.json

@@ -3,7 +3,7 @@
   "productName": "Signal",
   "description": "Private messaging from your desktop",
   "repository": "https://github.com/WhisperSystems/Signal-Desktop.git",
-  "version": "1.0.39",
+  "version": "1.0.40",
   "license": "GPL-3.0",
   "author": {
     "name": "Open Whisper Systems",