* Update cover.rfxtrx.markdown
Added information that is needed if you set up RFY with single digit code.
If the code is not supplemented with `0` HA will throw out an error.
* Update cover.rfxtrx.markdown
Was missing an 0 in the example
* Add zwave cover info
* Wrong filename
* add rpi_gpio to cover
* Add homematic to cover
* Wrong date and Ha version
* add rfxtrx to cover
* Deprecated warning for garage_door
* Deprecated warning for rollershutter