Kernel code:

Kernel code:
+ Added mtCOVERAGE_TEST_DELAY() macro to facilitate getting better code coverage during testing.
+ Update prvNotifyQueueSetContainer() so it does not call xTaskRemoveFromEventList() if it is called from an interrupt, and the queue is locked.

Demo apps:
Added QueueSetPolling.c/h demo/test functions.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2331 1d2547de-c912-0410-9cb9-b8ca96c0e9e2