static_file: add charset to content-type

currently static_file serves content-type as 'text/html' without
providing a charset, which makes firefox bark with this in the error log:

"""
The character encoding of the HTML document was not declared. The document
will render with garbled text in some browser configurations if the
document contains characters from outside the US-ASCII range. The
character encoding of the page must be declared in the document or in the
transfer protocol.
"""

this patch modifies static_file to add "charset=UTF-8" to all "text/..."
mimetypes in case the mimetype was not provided explicitly. The actual
charset used can be configured via 'autocharset' keyword argument.
docs: fix broken links
docs: link to the Jinja2 website (instead of docs)

This is consistent with the links to the other templates.
typo back instead of brack
Don't use super() for old-style classes

See http://docs.python.org/2/library/functions.html#super
add Chinese translation of configuration
sync
Changing bottle to accept options for cherrypy server like numofthreads etc and pass it along with cherrypy
in this form run( APP, host = CONFIG.get( webserver, hostname ), port = CONFIG.get( webserver, port ),
         server = cherrypy, debug = CONFIG.get( webserver, debug ), options = {numthreads:30} )
Merge pull request #540 from tylerl/master

Don't use super() for old-style classes
Merge pull request #544 from pdoguparty-ecofactor/master

Changing bottle to accept options for cherrypy server like numofthreads ...
Merge pull request #542 from myzhan/master

add Chinese translation of configuration
Merge pull request #538 from rpuntaie/typo_back_instead_of_brack

typo back instead of brack
Merge pull request #536 from michael-k/small-fixes

docs: link fixes
Merge pull request #484 from denik/charset

static_file: add charset to content-type
Fixed pull request #544
Changed #528 a bit and added documentation. The charset option now affects all text/* files, not only calls where mimetype
guessing was used.
Fix #541: Added ipv6 support to wsgiref development server.