OP-168 Creating LESS colour variables for the preside toolbar / admin bar

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OP-168 creating LESS variable for default font colour

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OP-168 Creating and using a mixin for diagonal striped background

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OP-168 Sorting out LESS colours for the preside console + other colour tweaks

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OP-168 LESS colour variables for the frontend editor styles

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OP-168 Sorting out admn toolbar colours in LESS

Also fixing up the edit mode switch to be i18n compatible and not need so much custom LESS

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OP-168 LESS colour variables for all our specific css files

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OP-168 deleting redundant CSS

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