merge SVN commit 1078274 by winterz:

change CalHelper:::hasMyWritableEventsFolders() to use a family string
argument so we can read the correct manager config files. Use this
in text_calendar bodypartformatter accordingly.
fixes kolab/issue1783

svn path=/tags/kdepim/enterprise35.0.20100115.1075228/kdepim/; revision=1078279