- add datalog plugin which can be used to write item status into
  different log files
- support multiple datalogs in item configuration
- remove prefix in logger messages - already added by the system itself
- change field separator from "|" to ";"
- update field separator
- add var/log/data directory for datalog plugin
- fix headline
smarthome.conf item_change_log docu
Merge branch 'develop' of github.com:mknx/smarthome into develop
item docu: autotimer
adding attributes to match_item
scheduler change(): better string handling for crontabs. THX walldi
- add missing import of "socket" which is required when using network connection
knx dpt 5/5.001 round(value, 1)
visu: hixie76 fix
update docu of sma-plugin to reflect new data field names / implement no_waiting option in dlms-plugin and minor fixes in modbus
dlms: use smarthome.string2bool instead of own function
dlms: update readme and add guidance for setup
Fixed creating new threads on and on

There was a major bug which caused the plugin to spawn new threads on and on until no threads were available anymore.
Changed command name ReadSupplyAirTemperature to ReadIntakeAirTemperature for CA500
Added warning for using CC Ease with the plugin
Update commands.py