Tag 3.0p4.
Fix session behavior, especially on logout.
Remove .gitignore here as well.
Port trunk's svn:ignore changes to branch.
Take care to keep the media directory alive.
Migrate .gitignore file to svn:ignore properties. My bad.
Change version number to new dev version.
Make the Data export faster for SPSS-syntax file
Change the rules for labeling the variables for SPSS.
Tag 3.0p3.