Update interpreter lines for scripts

[kurtkilpela]

Various scripts in the repo contain interpreter lines such as #!/usr/bin/gemstone/topaz. This should be updated to #!/usr/bin/env topaz.

Installing an RPM checks that interpreter paths are all present and fails if the dependency is not present. GemStone rpm bundles were including (but no longer include) these files as part of ensuring rowan projects were available in the product distribution.

The interpreter lines are not currently suitable anyways. The indirect invocation is suitable broadly speaking, as long as topaz is in the path.