Karrigell-2.1.3 released

Karrigell is a simple, lightweight but full-featured web framework, written in Python

New features in this version :
- support of gzip encoding : a parameter in the .ini file tells Karrigell to use it or not
- changes in the HTMLTags module : a method attribute() to change tag attributes, and a bug fix
in the Sum() function
- better handling of file uploads, as suggested by limodou : the object available in the scripts
is an instance of cgi.FieldStorage and has the attributes file and filename
- removed the option 2 in debug mode

This version also fixes many bugs :

- the session management did not work correctly with Apache on Linux. The recommanded way
is now to make Apache work as a proxy between the client and the built-in web server
- open all static on binary mode so that Content-Length is correct (this bug is in the built-in
module SimpleHTTPServer)
- a change in the struct module caused a bug in the localization program
- make aliases work with Xitami
- added missing methods in the ParseHeader class in SimpleAsyncHTTPServer