move analytics tracking to its own function
count words when tracking PUBLISHED_POST or SCHEDULED_POST events
fix typo
call trackSavePostAnalytics only if the post is publishable
remove img tags before Html.fromHtml call
Merge pull request #2074 from wordpress-mobile/issue/2066-mixpanel-wordcount-property

fix #2066 mixpanel wordcount property
Merge branch 'develop' of https://github.com/wordpress-mobile/WordPress-Android into issue/2043-reader-comment-recycler