refs #8580 - allowing for license and readme

addressing:

```
RPM build errors:
error: Installed (but unpackaged) file(s) found:
   /usr/lib/ruby/gems/1.8/gems/hammer_cli_sam-0.0.1/LICENSE
   /usr/lib/ruby/gems/1.8/gems/hammer_cli_sam-0.0.1/README.md
    Installed (but unpackaged) file(s) found:
   /usr/lib/ruby/gems/1.8/gems/hammer_cli_sam-0.0.1/LICENSE
   /usr/lib/ruby/gems/1.8/gems/hammer_cli_sam-0.0.1/README.md
Child return code was: 1
```