Overview of Changes from 2.21.1 to 2.21.2
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* Wrap evo_cal_component_[gs]et_status (Gustavo, #505305)
* Fix WAF build problems (Gustavo)
* In evolution modules avoid multiply defined symbols (Paul, #506401)
* Bug 505307 – Compilation fails against metacity 2.21 (Koop Mast)
* Make sure the evolution modules get a __version__ attribute (Gustavo)