first draft at modernizing pyramid_jinja2
clean up creation of an environment
support multiple renderers... large rewrite
update docs slightly
update changelog
fix py3 bug
stop using broken package reference in py32
update documentation to reflect changes
basic formatting and whitespace fixes
force links to jinja2 docs
misnamed argument
add some narrative docs on the changes
Merge pull request #84 from Pylons/feature.multiple-renderers

feature.multiple renderers