Theme and plugin manifest tweaks

[shadyvb]

Related #33, ref: https://github.com/Chassis/Chassis/pull/210#discussion_r71981437

Changes:

• Allow installing a theme and activating it for the first time only, skips if the theme is already installed
• Allow enabling a theme site-wide, and activating it
• Ignores activation if the theme is already activated
• Ignore activation is the theme is not installed

Also

• Allow passing onlyif/unless attributes to wp::command

  New possible syntax:

# Installs plugins, activates them, but only after installing, not after each provision
wp::plugin { $plugins:
    location => $location,
    ensure   => 'present',
    activate => true # default
    networkwide => false # default
}

# Installs themes, does not activate them
wp::theme { $themes:
    location => $location,
    ensure   => 'present',
    activate => false # default
}

# Installs a themes, activates it after installing only, not after each provision
wp::theme { $theme:
    location => $location,
    ensure   => 'present',
    activate => true
}

# Enables a theme network wide, does not install it
wp::theme { $theme:
    slug     => $theme,
    location => $location,
    ensure   => 'enabled',
    networkwide  => false # default
}

Note: I've tried to do it so it maintains backward compatibility, might need a fresh pair of eyes though to confirm.

[shadyvb]

@rmccue Excuse the poor syntax, this is my second time editing Puppet manifests, and the first was couple of hours ago as well.

Let me know what do you think.

[BronsonQuick]

Thanks for the PR Sir. I'm closing this as I added something similar during a recent refactoring.