Added file permissions

Added support for defining file permisions, using the unix format, ie.
644 for files and 755 for dirs
Changed teh fefault permission on files and dirs from 777 to 644 and 755
respecively.
addDicextoryContent now reads permissions from teh filesystem, but the
user can override.
Only removed trailing whitespaces
Simple correction of HTML

Got fed up with the shoddy Wikipedia HTML being marked with errors in
NetBeans.
Revision text updated
Merge pull request #13 from Grandt/1.50

1.50