Updated default blavatars
Larger default blavatars, new color palette
Prevent crash if delegate does not implement contentViewDidLoadAllMedia:
Force deviceId to be a string after registering for push notifications
replace a _right single quotation mark_ by the _ascii single quote_ character
Merge pull request #1311 from wordpress-mobile/issue/1307-deviceid-force-string

Force deviceId to be a string after registering for push notifications
Merge pull request #1310 from wordpress-mobile/issue/1306-crash-notifications

Prevent crash if delegate does not implement contentViewDidLoadAllMedia:
Merge pull request #1313 from wordpress-mobile/issue/left-single-quote-in-a-string

replace a _right single quotation mark_ by the _ascii single quote_ character
Updated default blavatars for current color scheme
Merge pull request #1279 from wordpress-mobile/issue/1042-default-blavatar

Updated default blavatars
Merge pull request #1322 from wordpress-mobile/develop

Pulling changes from develop into release/4.0