modify pages of trade blueprint; add history blueprint
modify setting page
add description field to sellings table
remove ssh certificate;
add name field to account table
remove name field from account table

modify financial manage form
every user get use a different bitcoin address for funding,
this bitcoin address is generated according to main blockchain receive account.
the email does not have to be unique
Add two factor authentication with google authenticaticator
split trade blueprint to financial blueprint and trade blueprint;
modifiy the transfer procedure
secuired transfer
need to set autocommit flag back to true when rollback
remove redundant column from list_transfer and list_receive pages
fixed gettext bugs
modify sidebar navigation css
change the type of order id and transaction id from uuid.uuid().int to timestamp in microseconds
add socketio support
change datatype of transaction id and order id to uuid.uuid4().int
modify main page