* introduced dummy function for msp-430 config-save
* moved sysconfig from board to core
[sys/transceiver cpu/]
* moved some buffer size defines to cpu dependent parts
* some cleanups
* added drivers directory to doxygen file
* added missing include to sht11 header
* added rtc and sht11 support to default project
* added rtc to auto_init
* added rtc and sht11 support to shell
