Merge branch 'piglet-1.2' of https://github.com/k3nd0x/piglet into pi…

…glet-1.2

started with #14 - added different buttons for different order types
started with #11, searching after user by email address, added new notification type "budget shared" and "budget joined"
added new database functions, renamed orders table, added version table
added random name generator for user name and surname, implemented it in user creation and admin creation process