Fix tank color not getting set correctly

Refs #3106
Fix join dialog so that players can rejoin

Refs #3106
Convert tabs to spaces

Refs #3106
Make visible property recursive in vwf nodes instead of the underlying three.js object, so that it replicates correctly.

Refs #3176
Fix deactivating navobjects after a client disconnects

Refs #3106
Merge pull request #120 from virtual-world-framework/fiz-bzflag-issues

Fiz bzflag issues

Fixes #3106, #3176