improve solaris 10 support

[tosmi]

this merge request imports all our internal changes to the solaris support to make it really useful.

this includes:

• changed package from sfw to www.sudo.ws
• lint fixes for various files
• introduce $package_admin_file, as this is needed for a seemless solaris 10 installation. we do not provide an admin file (should be in separate module) but you can specify which one you would like to use.
• move solaris package installation to solaris.pp as we need different options for 10 and 11.
• rspec tests for solaris 10 and 11

[tosmi]

the rspec tests are currently failing, but this should be fixed as soon as you merge #50 as this removes the dependency on ldap (which also requires stdlib). i've got no idea why the test now fail if there's a depenency on the ldap module.

[saz]

Thanks!