Small blorg.el hacking

Slightly hacked the blorg.el package, that I use to generate blog on my site (it is used mostly for article announcements, etc). Following changes were made:

• Proper generation of links to files, without explicit specification of the file:// scheme
  
• Copying of files into blorg directories was removed - i don't want to copy files, that are already on my site
  
• Proper escaping of the <, >, &, ", was implemented (although may be not in all places - please let me know, if you'll find, that text is generated improperly)
  

Another thing that I want to make is generation of the file names for notes with non-latin symbols in titles. After this change, package will almost ready to use. For my site I also need to align HTML template to match design of the my site, and make proper generation of links for JS-Kit Comment Widget.