Merge pull request #207 from toyowata/master

[LPC1549] Added AnalogOut API and PWM improvement
Input file format description added
Merge branch 'master' of https://github.com/mbedmicro/mbed
Added proper host test (draft)
Updated server IP address (According to server test script)
Add additional peripherie for ST Nucleo L152 board

Add code for . UART 3-5, SPI 2 + 3, I2C2
Merge pull request #208 from dreschpe/master

Add additional peripherie for ST Nucleo L152 board