Version 0.9.4 (bugfixes + extension loading + better icon classes)

Did some bugfixing, esp. SSL-related, because auto-detection of the current position of the user simply fails in Chromium-based browsers, if the current page is NOT completely SSL-protected. Also uses a different approach towards the usage of the Geolocation API (its using it directly, based upon a code snippet / example by MapQuest, vs. the regular "Locate" feature by LeafLet.js).

Also includes two filters to load additional leaflet plugins (extensions), as well as improved icon classes plus a bit of template glue for improved asset loading.