Hello Sjur, with your addition of the iCal plugin, there were some missing SVN properties for "svn:eol-style". I fixed today them in r831191.
Please configure your SVN client. There are some tips here http://forrest.apache.org/tasks.html#subversion-monitoring which links to http://www.apache.org/dev/version-control.html#https-svn-config -David
