Web.pm - Get and cache versioned page_js, page_css and spice_js files. No more hardocoded js/css calls
Web.pm - added missing curly brace
Server.pm - Normalize \d capture groups with \d+
Server.pm - Added lots of comments, fixed some indentation
Server.pm - Lowercased filenames in comment
Server.pm - Should also check and use spice2_dev.js (for internal use)
Server.pm - added more comments for further clarification
Server - More comments and cleanup
Merge pull request #32 from duckduckgo/zaahir/duckpan-cache-page-assets

Introduce caching for page assets (js/css)