package should fix executable bit

[lowell80]

The ksconf package command should fix up simple permissions issues such as the executable bit being set for all files ( this can happen when importing between OSes, across file shares, or possibly an overly zealouschmod -r command.

• If README and *.conf files are executable, then ksconf should fix that.
• Executable bits in bin should be handled differently. (Ideally, it would be nice to enable the executable bit for some bin files too. The classic example is input scripts in the NIX app)