Some improvements to mobile site

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branch : mobile
Comment the YAML css files, expand the base templates

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branch : mobile
Don't load the custom JS code, this will need to be adapted

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branch : mobile
Add some more templates adapted to mobile (more or less)

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branch : mobile
Make the background of the muscular system transparent

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branch : mobile
Add custom CSS file for mobile version

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branch : mobile
Group the muscle DIVs in a grid

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branch : mobile
Add a somewhat more optimized version of the render day template

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branch : mobile
Remove font definitions from workout-manager.css

Styles and classes common to both the mobile and the desktop version of
the site are now in workout-manager-common.css

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branch : mobile