Changes file permissions to make shell scripts executable.
This ensures that the scripts can be run directly.
Addresses a pre-existing issue.
Related to #4696
converted ballistic overkill to 64-bit
removed log parameter from hurtworld to enable verbose console
converted Huttworld to 64-bit only
add steamclient.so fixes for all unity3d servers
standardise steamclient.so fixes mainly for unity3d servers