1.0.1

• Enable BEM linting

1.0.0

• Changed u-posAbsoluteCenter to use transform to centre and no longer requires a
  width and height.
• Added u-posFit to fit an element to the size of its parent
• Added u-posFullScreen to fit an element over the viewport
• Added u-posFixedCenter to centre an element in a fixed position
• Update preprocessor to 1.0.1
• Fix stylelint conformance