Petr Škoda 4b734e74ae MDL-39846 more fixing and cleanup of new events
* fix typos (thanks Rajesh)
* move log related data out from event API specification
* change callable key in definition to callback
* use event data in observers instead of cached records if possible
* event level is now a number 1…100
* improved event safety checks
* add event name and description method
* new can_view() method
* improve unit tests to test all callable types
* improved performance
2013-07-19 08:43:27 +02:00
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