Use core functions that are faster for test file creation.
To support large requests for hashes, the core hash function
must support large hashes without recursion. PHP has a default
recursion depth of 100 and long hashes don't support this.
Remove transactions as they create performance problems for larger
courses and doesn't introduce significant benefit for developers.
Performance changes meant the times were much faster, a reasonable
guess was taken on performance of an average machine.
This commit covers all events outside of /mod/. It adds mapping info for restoring
events, or the default implementation which returns false if mapping is not required.
* 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
Russell Smith