+ Add the pre-existing 64-bit Cortex-A53 port layer into the head revision of the main repository.
Demo application updates:
+ Update Zynq demo to use SDK version 2015.4
+ Add task static allocation standard demo to Zynq demo.
+ Make the XScuGic object accessible outside of the vConfigureTickInterrupt(), again in the Zynq demo.
+ Added Renesas RXv2 port for IAR.
Demo apps:
+ Demo/Rename the CORTEX_R4F_T_GCC_IAR_ARM directory to just Rename the CORTEX_R4F_T_GCC_IAR.
+ Add IAR project for the RX113.
+ Add RX231 e2studio projects for the RX231.