fix hard coded string
fix #1254 and style
Merge pull request #1255 from wordpress-mobile/issue/1254-npe-mediaeditfragment

fix #1254 npe mediaeditfragment
Added mixpanel.getPeople().identify to mark user as opted in to People tracking
Merge pull request #1259 from mixpanelsteve/develop

Added mixpanel.getPeople().identify to mark user as opted in to People tracking
Remove pre-emptive HTTP authentication.
Remove unused imports
Merge pull request #1268 from wordpress-mobile/issue/1265-remove-preemptive-http-auth

Remove pre-emptive HTTP authentication on self-hosted blogs protected with HTTP Auth
2.7.3 version bump
Merge branch 'master' into develop
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into feature/reader-blog-detail