Pre-release 0.8.0-pre1

BREAKING CHANGES:

• Added 'globals' and 'environments' root directories for global and
  Puppet-environment keys, respectively, in the normalized key paths
  in the backend.
  • This change makes the top-level organization of keys in the backend
    explicit, and thus more understandable.
  • The prefix used for global keys was changed from <keystore root dir> to
    <keystore root dir>/globals.
  • The prefix used for environment keys was changed from
    <keystore root dir>/<specific Puppet environment> to
    <keystore root dir>/environments/<specific Puppet environment>.
  • Change required for the LDAP plugin.
• Replaced the confusing 'environment' backend option in each simpkv Puppet
  function with a 'global' Boolean option.
  • Global keys are now specified by setting 'global' to true in lieu of
    setting 'environment' to ''.
• Changed the key and folder name specification to restrict letter
  characters to lowercase.
  • Change required for the LDAP plugin.
• Changed the plugin configuration API
  • Configuration has been split out into its own method, instead of being
    done in the plugin constructor.
  • This minimal change simplifies unit testing of configuration of complex
    plugins.
• Fixed the mechanism a plugin uses to advertise its type.
  • Plugin type is now determined from its filename.
  • Previous mechanism did not work when when multiple plugins were used.

Added

• More detailed plugin exception reporting in order to pinpoint plugin
  logic problems.
  • Now prints out the useful portion of the backtrace when an exception
    is raised.
  • Especially useful during plugin development.