RFM12 FS20:
  TX3 Support selectable in menuconfig
  Detect repeated telegrams
fixed compiliation error
timer macros for timer2 fixed
Merge pull request #204 from eku/rfm12_fs20

Rfm12 fs20
Timer 2 makros for AVR with A/B Oscilator where wrong
RFM12 FS20:
 Fixed timer 2 prescaler calculation
 New ECMD for setting RFM12 bandwith
Merge pull request #205 from eku/rfm12_fs20

Rfm12 fs20
RFM12 FS20: send received data to syslog server
Merge pull request #206 from eku/rfm12_fs20

RFM12 FS20: send received data to syslog server
Missing include file added.
RFM12 FS20: ECMD to retrieve received FS20 datagrams
RFM12 FS20: include syslog.h were used
Merge pull request #207 from eku/rfm12_fs20

Rfm12 fs20
RFM12 FS20: decouple syslog and ecmd data processing
Merge pull request #208 from eku/rfm12_fs20

RFM12 FS20: decouple syslog and ecmd data processing
IRMP: return pointer to RX fifo instead of copying data
IRMP: provide header file with prototypes for ecmd functions
syslog is not used in RFM12 FS20 library, so do not inlcude syslog.h
Unified ECMD commands for RFM12 modules. Bandwidth, gain and DRSSI are available for each modul.
RFM12 FS20: internal functions must be static for inlining