fix invalid html: missing closing div in templates/template_doc.html
bump buildout recipe versions
Bump redis and redis and memcached python libraries
Bump misc python packages

Minor updates of MarkupSafe, ipython, pyflakes
Rename static page template

from template_doc.html to static/show.html where it is expected.
Show content from static index page on start page if available
Do not fail if static index page isn't available
Make post register/login urls configurable (fixes #431)

This allows to define post register/login urls and instances, which a
user is redirected to after succesful register/login, if no came_from
parameter is set.

If these options aren't set, the user is redirected to the dashboard
instead.
Merge branch 'develop' into export-requestlog
Removed the "csv" option from the formencode, the code responsible to handle this option is thrown out, due to nested dict structure of the export data, that the "csv" format not easily could represent.