Image dissappears after insert/delete operation in sideview mode.

[Shivashis Padhi]

In sideview mode, after insert/delete operation, the map image disappears.

https://bitbucket.org/wxmetvis/mss/src/5f8f602503badb034328c88d0f33f44e9870531b/mslib/msui/mpl_pathinteractor.py#lines-651

It's probably because we are deleting the image and not drawing it.

[Shivashis Padhi]

Working on this.

[Reimar Bauer]

resolved by 641b69c