Fix typos
Add Master API:
 - SetWifiHostname
 - GetWifiHostname
 - SetCurrentCallbackPeriod
 - GetCurrentCallbackPeriod
 - SetVoltageCallbackPeriod
 - GetVoltageCallbackPeriod
 - SetUSBVoltageCallbackPeriod
 - GetUSBVoltageCallbackPeriod
 - SetCurrentCallbackThreshold
 - GetCurrentCallbackThreshold
 - SetVoltageCallbackThreshold
 - GetVoltageCallbackThreshold
 - SetUSBVoltageCallbackThreshold
 - GetUSBVoltageCallbackThreshold
 - SetDebouncePeriod
 - GetDebouncePeriod
 - Current (Callback)
 - Voltage (Callback)
 - USBVoltage (Callback)
 - CurrentReached (Callback)
 - VoltageReached (Callback)
 - USBVoltageReached (Callback)
Merge branch 'master' of github.com:Tinkerforge/generators

Conflicts:
	configs/brick_master_config.py