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- The driver will now return microvolts and a channel name
- Behavior with drift correction disabled should now be fixed

Patch contributed by NeuroServo Inc. and NeurotechX.

Additionally, deprecated several components for clarity,

- Deprecated gUSBamp legacy driver
- Deprecated TMSI Refa32B legacy driver
- Deprecated the Downsampling box

+ Code cleanup

Merge branch 'ceriou-fix-linux-doc-gen' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

Merge branch 'tweak-juli-for-release20' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

- Fixed the install of gtk theme files on Windows
- Changed Designer application name

+ Fixed typo in dependencies manifest
+ Fixed install of network-io plugin dll
+ Removed obsolete info from doc
+ Disabled python test causing popups
+ Added needed vcredist-110

Merge branch 'fix-crio-cue-image-warn' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

+ Changed Display Cue Image and Keyboard Stimulator to always send a
stimulation stream header in the beginning

Merge branch 'wip-jlindgre-fix-generator-timing' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

Merge branch 'wip-jole-core-1071-fix-mensia-library' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

Merge branch 'wip-jlindgre-std-threads' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

- This way these drivers resemble real devices more
- Removed the start time getter introduced in previous commit

- Re-implemented the signal generators not to rely on sleep.
- Added acquisition start time getter to the driver context
- Added a few comments.

Merge branch 'wip-thga-remove-unused-script' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

Merge branch 'wip-thga-ov_path_bin-fix' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

Merge branch 'wip-thga-connectivity-warning' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

Merge branch 'ceriou-metabox-example' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

+ Changed the metabox to Examples/Metabox category
+ Added parameter for the notch filter frequency range
+ Added short & long description

Merge branch 'wip-thga-fix-urldocpath' of gitlab.inria.fr:openvibe/extras into wip-all-openvibe20-base

- Fixed channel selector operation in MS
- Fixed MS training scenario not writing end stimulation to the .ov
- Added a bit of grace period before the end stimulation