Boss for Sensei 1.0.9

* Fix – Lesson order on course page
* Fix – “Other Lessons” text on course page
* Fix – Filter styles on Course archive page
* Fix – Progress bar on single course
* Fix – Lesson count
* Fix – Course shortcodes
* Fix – Course group extention not showing course module
* Fix – Noticed added, requires Sensei version 1.9 or above