fix 6-field error precedence for devel systems

[yakra]

https://travelmapping.net/updates/2024-08-18@21:57:32/logs/users/ssoworld.log

... Ignoring line matching highway in system in development: IA LinHwy US30_Whe IA LinHwy CRY44 Ignoring line matching highway in system in development: IA LinHwy US30_GM IA LinHwy US30/61 IA LINHWY and IL LINHWY not in same connected route in line: IA LinHwy US30_DW IL LinHwy US30_Ste Ignoring line matching highway in system in development: IL LinHwy IL40 IL LinHwy US52_S Ignoring line matching highway in system in development: IL LinHwy IL251_S IL LinHwy IL251_N ...

This changes the middle error to another Ignoring line matching route(s) in system in development error. That's the more important error here; as-is, it could kinda give the impression that we'd be able to mark travels on these routes if not for the ConnectedRoute error.

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Along the way, changes "highway" to "route" in userlog errors, as we're expanding beyond highways now.

[yakra]

Having second thoughts about this.

• Makes processing of valid 6-field entries less efficient.
• Once the system goes preview, the entry will need to be fixed anyway, because different ConRoutes.
• Depending on how hidden system implementation shakes out, this part pf the code may change. May as well start from no-build.