download qqnumber and other info when login seprately to speedup

Signed-off-by: xiehuc <xiehuc@gmail.com>
fix #583 disable href translation on <a>

Signed-off-by: xiehuc <xiehuc@gmail.com>
emit sys message as im/chat message

for gnome-shell-extension-pidgin notify error message as well

Signed-off-by: xiehuc <xiehuc@gmail.com>
release 0.4.1

Signed-off-by: xiehuc <xiehuc@gmail.com>