Fix MarkupSafe case in setup.py

Most of pypi mirrors don't allow wrong package name case when installing
them using pip
example: c.pypi.python.org

I know, this is very painful
Merge pull request #226 from dzen/master

Fix MarkupSafe dependancy case
 filter should accept objects.
Merge pull request #236 from johnboxall/title-filter-with-objects

`title` filter should accept objects.
Let travis notify the #pocoo irc channel
Merge branch 'master' of github.com:mitsuhiko/jinja2
Fixed some incorrect docs