Updated Makefile
Merged error.h -> mbed_error.h correction
Updated mbed revision. Deleted the broken links of example projects
Copy is now the default behaviour
Updated Travis CI to test only the master branch
Merged QEMU simulation. support
Added STM32F4-DIS Base Board UART projects.
Updated gcc-arm-none-eabi package version from 10 to 11
Updated gcc-arm-none-eabi package version from 10 to 11
Merged /w master