add: openlayers css hacks for rendering bugs
add: openlayers css hacks for rendering bugs

matthieucan/quebec-monitoring,savoirfairelinux/quebec-monitoring,matthieucan/quebec-monitoring,savoirfairelinux/quebec-monitoring,matthieucan/quebec-monitoring,savoirfairelinux/quebec-monitoring,savoirfairelinux/quebec-monitoring,matthieucan/quebec-monitoring