Improved code security in serial
Substituted registers to new templated interface
Fixed templatization of register
WIP: Fitting usart to new Register model
GPIOPort supports new template schema
Board now uses the new GPIOPort schema
WIP: Adapting Pin class to new template architecture
Modified Timer interface (implementation is missing yet)
Timer's implemented using new time interface
Fixed some register names
Time now uses new timer name
timer fully supports new template schema
Adapted usart implementation to new register schema
Serial adapted to templated registers and new usart interface
pwm updated to new timer interface
Finished compatibility with new register model
Reference makefile for sample projects
Clean-up old comments
WIP: Reference makefile for projects
Generalized makefile
Merge branch 'Interrupts' into templateRegisters
Support for 20MHz crystals