r1.0.2

bug fix: raise excepiton when get workflow's state detail
bug fix: raise excepiton when view ticket manage page but there is no workflow
bug fix: can not save department if have not select approver
bug fix: can not save workflow's title template and content template
bug fix: get wrong participant when set participant type ticket field
bug fix: transition can not be display if destination state be set null
bug fix: ticket can not be handled if force change ticket's state
bug fix: form display last info if update a token permission and then try to add a new record
bug fix: start command '--' has been convert to '—' in readthedoc
bug fix: no log record generate if deploy by uwsgi
optimize: remind user add app call permission after new workflow
optimize: add prompt message about notice in workflow edit form