handle events by a anonymous user
remove "ccnet/seaf-daemon exit abnormally" message

When ccnet/seaf-daemon exited, it's hard to tell whether this is
a normal system shutdown.
handle http redirect in api requests
fixed edit account sql
updated i18n
add open_log_directory to tray's menu
add an option to hide icon from docker

    close #110 and fix #44
Merge pull request #187 from haiwen/open_log_dir

add open_log_directory to tray's menu
Merge pull request #188 from haiwen/enhance_add_option_to_hide_dock_icon

add an option to hide icon from docker
comment out debug message
fixed readonly repo icon
fixed settings dialog style
port to qt5