External ADC pad support for rssi and power meter

Allowing use of ADC_CHANNEL5 for rssi (rssi_adc_channel) and power meter
(power_adc_channel) on external pad (Rev5 only)
Missed correct number of places power adc comment
Removed unnecessary defaulting to 0

Defaulting to 0 isn't needed as the struct is memset()'d anyway.
convered line endings
added attributes file
Merge pull request #210 from schugabe/lineendings2

Fix line ending problems
Uncommitted (possibly) baseflight.hex

*hopefully* uncommitted baseflight.hex
Merge pull request #174 from geebles/master

External ADC pad support (Rev5 board) for rssi and power meter
Revert "added attributes file"

This reverts commit 37e4e3b444acf0296a691a9b1c3ed8d819befc51.
Revert "convered line endings"

This reverts commit 7a029029ebe024ad7f950df37d2919ab1d336133.
Added option to  disable SBAS. (SBAS causes occasional severe altitude calculation errors)
Merge pull request #212 from jaahaavi/develop

Added option to  disable SBAS.
AlienWii32 alternative defaults for NAZE target
Activate via OPTIONS="ALIENWII32" during make
Merge pull request #213 from MJ666/AlienWii32_defaults

AlienWii32 alternative defaults for NAZE target
GPS soft serial support and GPS fixes
Added possibility to use both Serial RX (Spektrum satellite/SBUS/SUMD) and GPS at the same time.

- When features: feature SERIALRX, feature SOFTSERIAL and feature GPS are enabled Serial RX is using UART and pins 3&4 and GPS is using soft serial and pins 5&6.
- Fixed GPS code, so that now it's reconnecting if connection to GPS is lost.
- GPS tab on Chrome Configurator now shows GPS signal strength.
- Added autobauding option. (If connection is lost then it uses lower baudrate.)
Merge pull request #214 from jaahaavi/develop

GPS soft serial support and GPS fixes
Merge remote-tracking branch 'upstream/master' into servomixer