1.22: Removed ma.gnolia.com

1.21:
    Replaced "do not track"-text with 2-click-buttons (heise) for
    google+ and facebook
    Modified default spreadly-width

1.20: Added google +1 by seraphyn

1.19: Changed twitter link to reflect API change, fixed rel=nofollow

1.18: Added spread.ly (experimental)

1.17: Added identi.ca

latest: Smarty3 forward compatibility

1.16:
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Added extra "do not track me" security when using facebook like button. Must be enabled in the plugin configuration.

1.14:
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Added Facebook "like" iframe