Small typo
Minor typo
Update session09.rst
logged_in is not defined by slide 12

Using this base.pt without commenting out the <span tal:condition="logged_in"> (or otherwise removing the "logged_in") will break the template.
move adding template to session09.  revert change to base.pt
Merge pull request #109 from fulv/master

Found a few typos in Session09
Merge remote-tracking branch 'upstream/master' into excercises