xTaskGenericNotify() now sets xYieldPending to pdTRUE even when the 'higher priority...

xTaskGenericNotify() now sets xYieldPending to pdTRUE even when the 'higher priority task woken' parameter is provided - making its behaviour consistent with event objects.
Ensure tasks that are blocked indefinitely on a direct to task notification return their state as eBlocked, previously was returned as eSuspended - making its behaviour consistent with event objects.
Fix typo in stream_buffer.c where "size_t xBytesAvailable ); PRIVILEGED_FUNCTION" had the semicolon in the wrong place.
Add testing of Stream Buffers to the AbortDelay.c tests.
Guard inclusion of C code when FreeRTOSConfig.h is included from an assembly file in the ARM7_LPC2129_IAR demo.
Fix minor typos in the Windows demo comment blocks.

git-svn-id: https://svn.code.sf.net/p/freertos/code/trunk@2537 1d2547de-c912-0410-9cb9-b8ca96c0e9e2