title pattern for simpler definition

[pgassmann]

This Pull request contains:

• New interface using title pattern (backwards compatible)
• All other pull requests path should not have a trailing slash #23 Add SUSE Support. #25 Add manage_limits_d_dir bool class param #26
• Fixes the tests
• More validation and tests

The title pattern is inspired by puppetlabs-limits

Only change for existing users is that the filenames could change if $name ist not with .conf and it does not use the username_nofile / default_nofile pattern as title.

How to use

Set limits using title pattern:

    limits::limits{'*/nofile':
      hard => 1048576,
      soft => 1048576,
    }
    limits::limits{'root/nofile': both => 1048576; }

Using hiera

Puppet:

    include ::limits

Hiera:

    limits::entries:
      'root/nofile':
        both: 1048576
      '*/memlock':
        both: unlimited

[pgassmann]

Open for a month. Can you merge and update? Otherwise I will publish it in under my name.