Graphic improvements to OHM wiki pages

What about replacing the “H” with an hourglass. That way the logo is more pictographic so any hint of language preference is removed. It also gives for more space for reinterpretation without any loss of meaning. Allowing different project to reimagine the logo by so they can reflect the cultures and time periods they cover. Ancient projects could use a sundial while modern ones might substitute a watch face. Leading to a gallery of logos that match the flavor of the individual project. This would allow for a main logo image to be simplified while letting project logos get more exposure.