Fix F-Droid build issues

A diagnostic tool that displays data reported by sensors in the phone. GPS and other location providers: * Refresh AGPS data (if supported by phone) either manually, or when a new data connection is detected * Status notification whenever an app accesses GPS (configurable) * Location, speed, bearing and error * Satellites in view and satellites used * Signal-to-noise ration (SNR) for each satellite * Time to first fix and time of last fix * Map view for comparison of different location providers Sensors (as supported by your phone): * Accelerometer (acceleration and gravity) * Rotation * Magnetic field * Orientation (azimuth, pitch and roll) * Ambient temperature * Pressure * Relative humidity * Ambient light * Proximity Networks: * GSM/CDMA/LTE cells in range with network type and signal strength * WiFi networks in range, with encryption type, channel and signal strength Known limitations: * Some phones will report only the network cell with which they are currently registered. On such phones you will only see one cell under "GSM" or "CDMA". This is a limitation of the phone's radio firmware, and SatStat has no way of getting more information from the device. * Some devices ignore the command to refresh AGPS data. This is a limitation of the GPS driver (which varies from device to device and is usually proprietary). Starting with version 2.0, SatStat has a workaround in place for automatic AGPS updates.