master
Update UserAllocatedEvent.h
Fix replacement of event queue background. This was discovered when EventQueue::background was called with a nullptr. It crashes the software as it tries to call into a nullptr.
Unit tests: Remove redundant CMake target mbed-headers-base
CMake: Add option to enable greentea tests
Added mbed-events library
Update README.md
events.shared-eventsize: increased from 256B to 768B