Changed module containers to use CSW widget variations.
Started adding more consistency throughout modules' labels, tooltips etc.
Started rewrite of cs_keyboard.py.
Fixed widget alignment (targets ComboBox specifically, ensures consistency throughout all widgets).
Added integer rounding for all integer GSettings.
Updated CSW.set_tooltip() to work for the new widget layout.
Updated CSW.Range/Scale to accept inverted, exponential and logarithmic parameters.
Added modifier/inverse_modifier concept to CSW.Range.
Changed CSW.Range to not display current value by default.
Increased CSW.Range's minimum size to 256 pixels.