Mp3 insertation bug quickfix

+ Partially fixed bug that i made with last update
- had to disable type setting in tinymce (will need more investigation)

Now everything works exept type setting in tinymce config.
!Bug desc.: When setting type other than 4 will  f. up mp3 preview and insertation in Tinymce.
Will re-add type setting when i dig into more.

Sorry trippo for the error, didn't see that :(