gtk3.14 scroll_to_cursor changes

[fossfreedom]

according to this commit - gtk3.14 impacts this type of call in the views.

• https://github.com/GNOME/rhythmbox/commit/72b3e34ff8763ddb8a8642780ee843eda8c8aeaa

this issue is a "lets remember" in-case we move to gtk3.14 in the future

[fossfreedom]

no issue I think. closing.