Fixed the body being editable even when it shouldn't have been.
The placeholder text is now hidden when editing is disabled.
Moved the placeholder code to javascript so it'll work in android too.
Fixed some typos.
Improved the code to show the placeholder text.
Completely fixed the placeholder text.
Fixed a height issue.
Merge pull request #238 from wordpress-mobile/issue/174-edit-mode-placeholder

Small changes to the placeholder code