Bug fixes

• Spawn points no longer act funny when moving
• Detect spawn point angles properly in maps using angle attribute
• Handle unknown zones in a way that doesn't break everything

Features

• Dark theme and grid appearance tweaks
• Info bar
• Basic dialog UI responsiveness
• better checkbox/button appearance
• Persistent configuration
• Only shows tour once (unless called from dialog help)
• Basic in-session copy and pasting
• Navigation tool
• Better large map handling with auto grid scaling
• Better zoom handling, scroll-wheel zoom
• Map adjustments options: scaling and rotation
• Detect dtd
• Map settings
• Allow non-enforced axes