v0.9.0

See the Changelog for the full set of changes.

• Ensure using arrow keys when text is selected moves cursor correctly (58dec72) #347
• Add ctrl+z, ctrl+shift+z key commands for non-mac (8ad1377) #331
• Add npm test:ci script, use mobiledoc-kit saucelabs creds (e52172b) from @YoranBrondsema
• Add tests for copy-pasting on IE11. (2a743fa)
• Fix bug #326: Cross-browser testing on CI (19874f8), closes #326 from @YoranBrondsema #337
• Fix bug #329: Copy-pasting does not work on IE11 (b4c46c3), closes #329 from @YoranBrondsema #330
• Use keypress event to enter text (2701e71) #340