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
lookup callable: allows e.g. <template>/de.tpl or modify BaseTemplate.defaults per included template or stop an infinite include recursion
MakoTemplate now, too; test cases
lookup=fun corrections plus recursion test
Don't use super() for old-style classes

See http://docs.python.org/2/library/functions.html#super
add Chinese translation of configuration
sync
overrides after defaults and parent env
test update for SimpleTemplate.overrides
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