re #7881 loading of attributes of assembly on main page
fix view for chrome and firefox
re #7871 Added edit formula for every assembly.
re #7871 - connect templates with data from database
re #7871 Displaying list of assemblies + displaying result table of selected assembly.
re #7779 Convert TableColumn -> ContingencyTableRow and send it to frontend. SQL query is now executed in specific class DatabaseInterface via SqlQueryManager.
re #7668 Project init with connecting to demo database