* Horizontal mouse-wheel zooming. Ensure zoom center is always on the current mouse position.
* Horizontal zoom using mouse wheel center on the mouse position. For the SongEditor too.
* Wheel center on the Automation editor too.
* play sampletracks from any song position
* take care of TCO length
* TCOs shouldn't be updated when SE window is resized
* take care of zooming level
* takes care on all song position changes and mute/solo tracks now
* playes the sample only within the buffer limits
* takes care of time signature changes
* some minor code improvements (zapashcanon)
* loopback one tick earlier
* minor code changes
* get rid off clicks by resize and scrolling song editor
* removes playhandle by remove TCO
* minor bugs on manipulating TCOs in Song Editor
* update on add sample by playing
* white spaces 1
* Fix missing scroll back on stop in Song Editor
* Fix missing scroll back on stop in Song Editor
* Avoid scrolling the Song Editor when scrolling is disabled.
* Handle the smooth scroll in scroll back
* Remove leading underscore from fonction parameters name
* Put back spaces around parameters (Removed by mistake)