corrected spelling
caching performance improved
caching and performance enhancements
removed clear() and added semantically correct implementation
Merge branch 'master' of git.micromata.de:projectforge/projectforge-webapp
more nullsafe
more reasonable position for npe check
more reasonable position for npe check
PF-427: Calendar page: set height of calendar to max height of window.
PF-428: Don't show deleted hr planning entries of user in calendar page.
Merge branch 'master' of git.micromata.de:projectforge/projectforge-webapp