Merge networking update (Version 1.5.2)

[WizzardMaker]

This new version is the release of the new RAKNet networking backend. It is still highly untested though!

UPDATED dependency.zip - please download!

Fixes to 1.5.1:

• fixed CTD on some AI calcuations
• fixed CTD when using custom planes that are newer than the game expects
• fixed used plane age calculation to not set a newer build date than the plane's first release
• fixed crash in multiplayer when 3rd player connects

Additions to 1.5.2:

• Improved crash logging to include more info
  • Also now makes a copy of the log file with the assigned crash ID
• New max values:
  • Plane types: 80 -> 200
  • Cities: 80 -> 300
  • Routes; 370 -> 600

Fixes to 1.5:

• fixed CTD when opening the filofax
• fixed layout of extra info of filofax (to prevent "collisions" with other text)

Fixes in this version:

• fixed crash when buying a used plane in MP
• fixed mouse input not working when first launching the game
• fixed dialogue audio being cut off
• fixed crash when calling miss Selig
• fixed various texts (thanks to @merten)
• fixed clipboard "page right" button (also thanks to @merten)

Additions to 1.5.1:

• added more info (freight capacity, total passenger capacity) to the filofax

Additions in this version:

• added a VPN-less server browser
  • this feature should allow everyone to play with anyone (either via NAT punchthrough or a UDP proxy)
• added sentry exception reporting: everytime the game crashes a log is made and sent to me for further debugging
  • create an empty file called "no-sentry" next to the game executable to disable this functionality
• more info in plane overview (thanks to @luke-777)

Known bugs in this version:

• the space race does not sync how far each player is
• the session list still has the "create" and "load" options
• lobby password and user name selection/announcement is still missing

ATTENTION

This version has a new dependency "sentry". Please download the new dependencies.zip