Update from 0.16.1 to 0.16.3.

Update from 0.16.1 to 0.16.3.

Changes:

Merkaartor 0.16.3.

The only issue solved since 0.16.2 is the inability to switch languages.

Merkaartor 0.16.2.

The CHANGELOG since 0.16.1 is:

- FIX : Initial viewport issue
- FIX : Do not export incomplete features
- FIX : CSV import bugs
- FIX : Use "GPX track width" setting even when not in "Simple track appearance" (fixes #3095)
- FIX : temporary solution for #3082
- CHG : Allow to pan with middle mouse button
- FIX : lat/lon grid fixes for non-othogonal projections
- FIX : for non-rthogonal projections, maximize the viewport in lat/lon
- FIX : Handle empty style list in editor (fixes #3079)
- FIX : Fix scale bar to take latitude into account.
- FIX : Do not tag-match relation's children unless the type is "multippolygon" (fixes #2916)
- FIX : problem with "Bottom-left standard" TMS
- FIX : OSX fix
- FIX : Draw relations children dashed to avoid multiple parent drawing
- FIX : Fix several issues with features dock.
- FIX : Fix reappearance of deleted features.
- FIX : Fix WayRemoveNodeCommand reversibility.