file needed

example 12 needs this file stm32l1xx_conf.h in this folder
Libraries/CMSIS/Device/ST/STM32L1xx/include .

Im not sure if i have changed something or if it is the new std
peripheral library looking for this file in a new place
analogRead

Added analog read example, turns on led depending on ADC reading
potentiometer fading an led example

Read value in from ADC and fade an LED accordingly using pwm
added an example that controls a servo
Merge pull request #2 from usernamevalis/master

Added a few more examples