Updated the editor pod to 0.1.6
Fix bug where session_count wouldn't be incremented on app resume.
Added a "Signed In" event to tracking.
EditPostViewController now using WPFontManager
Now using WPFontManager across the app
Removed all open sans fonts from WPiOS project.
adds username and email address to Helpshift if logged in
adds metadata for blogs to Helpshift
adds meta data to HS on login problems
Merge pull request #2072 from wordpress-mobile/issue/font-fixes

Updated how fonts are instantiated (now using Shared pod)
Added code to email if it's not currently been stored.
Moving email retrieval code to separate class.
Resetting email check on sign out.
Moved email registration code to mixpanel analytics class.

Moved email registration code to WPAnalyticsTrackerMixpanel as the
extra class was redundant and the WPAnalyticsTrackerMixpanel class
hooks into the sign in flow better to fire off the register email
check.
Merge branch 'release/4.2' of github.com:wordpress-mobile/WordPress-iOS into issue/editor-missing-placholder

* 'release/4.2' of github.com:wordpress-mobile/WordPress-iOS:
  Removed all open sans fonts from WPiOS project.
  Now using WPFontManager across the app
  EditPostViewController now using WPFontManager
Merge pull request #2058 from wordpress-mobile/issue/editor-missing-placholder

Fix for missing placeholder text in editor body
Added property to track last seen screen for when the app is closed.
Added in some more time based people properties to Mixpanel.
Adjusting incrementSessionCount to use numberForKey for type safety.
Merge pull request #2061 from wordpress-mobile/issue/2060-fix-session-counting

Fix bug where session_count wouldn't be incremented on app resume.