Demo Patch 0.5.4

[p]Fixed an issue where the defeat track could play twice in some situations[/p]
[p]Fixed fire sources not damaging crew members when pushed, and not killing enemy crew in certain cases[/p]
[p]Fixed a softlock when the last enemy crew member was killed by fire[/p]
[p]Minor bug fixes to the journal "new entry" marker behavior[/p]