Update notes for v0.47

[p]Truck City v0.47 has just been released. This is the change log:[/p]

• [p]Feature: slight camera rotation implemented. Use right mouse drag to rotate[/p]
• [p]Improvement: added new factory icons for Alt mode, improved some old icons[/p][p][/p]
• [p]Improvement: credits are now localized[/p]
• [p]Improvement: cement container color changed to make it easier to distinguish[/p]
• [p]Improvement: minor performance improvement on texture caches generation[/p]
• [p]Bugfix: corrected a bug in the texture cache for containers[/p]
• [p]Bugfix: corrected minor glitch where some windows had the wrong z-index[/p]
• [p]Bugfix: corrected minor glitch where blueprints would not show smoke when built on tiles with one way roads[/p]
• [p]Bugfix: corrected a minor check that was unnecessarily logging errors on first-run execution[/p]