Add Support for Solaris 9/10

Without this commit, Solaris nsswitch could not be managed since there
were no defaults available for it. This commit adds the defaults as
provided and tested by @jimlowtherjr.

This commit closes #7.

Thanks again to @jimlowtherjr for the validation.
Add support for Scientific Linux

Without this commit, Scientific Linux could not managed since this
module did not support defaults for that distorbution. This commit adds
support for Scientific Linux thanks to the validation effort of
@jimlowtherjr.
Whitespace Cleanup