- Added an SCP-ECG file to EDF+ converter. Bimodal compression or customized Hufmanntables
   are not supported. Lossless compression using default Hufmanntable and/or 1tyh/2th differences
   is supported.
   Character-encoding other than ASCII is not supported.

 - Added two shortcuts (Plus and Minus keys) to increase or decrease the amplitude
   of the signals (sensitivity).

 - Added the possibility to choose between little endian or big endian encoding in the
   binary/raw to EDF converter tool.

 - Increased the number of pre-defined montage shortcuts from 8 to 12 (keys F1 to F12).