added syncdata command as suggested by #36
added syncdata command as suggested by #36

tectronics/django-command-extensions,Dougoc/django-command-extensions,niceban/django-command-extensions,katakumpo/django-command-extensions,katakumpo/django-command-extensions,niceban/django-command-extensions,google-code-export/django-command-extensions,tectronics/django-command-extensions,google-code-export/django-command-extensions,Dougoc/django-command-extensions,niceban/django-command-extensions,tectronics/django-command-extensions,google-code-export/django-command-extensions,katakumpo/django-command-extensions,Dougoc/django-command-extensions