Added user sorting for issue #1389
Sorts based on column name with buttons for each column. There are 3 states 'desc', 'asc', and 'unused', and it defaults to sorting by joinDate in descending order.
Altered /routes/User to grab the queries and sort by the query
Altered /APIFunctions/User to include sort and order parameters in request
Altered /Overview to contain states for column, order, and states.
Added user sorting for issue #1389 Sorts based on column name with buttons for each column. There are 3 states 'desc', 'asc', and 'unused', and it defaults to sorting by joinDate in descending order.