Fix ADC range problems with RHD2000Thread

Builds/Linux/build/libokFrontPanel.so

Builds/MacOSX/build/Debug/libokFrontPanel.dylib

Builds/MacOSX/open-ephys.xcodeproj/project.pbxproj

Builds/VisualStudio2012/open-ephys.v12.suo

Builds/VisualStudio2012/open-ephys.vcxproj

Builds/VisualStudio2012/open-ephys.vcxproj.filters

Builds/VisualStudio2013/copydlls.cmd

Builds/VisualStudio2013/open-ephys.vcxproj

Builds/VisualStudio2013/open-ephys.vcxproj.filters

JuceLibraryCode/BinaryData.cpp

JuceLibraryCode/BinaryData.h

...braryCode/modules/juce_audio_basics/juce_audio_basics.cpp

Resources/DLLs/libokFrontPanel.dylib

Resources/Images/Icons/attribution.txt

Resources/Images/Icons/floppy5.png

Resources/Images/Icons/upload2.png

Source/Processors/Channel/Channel.cpp

...ce/Processors/ChannelMappingNode/ChannelMappingEditor.cpp

Source/Processors/ChannelMappingNode/ChannelMappingEditor.h

Source/Processors/DataThreads/DataThread.h