We now support having multiple sessions clocked in. These are paired by
account name if given on the out entry, and otherwise an out closes the
most recent in entry.
Note that this breaks some backwards compatibility, in that we
previously ignored the description on the clock out entry. To mitigate
this, a new hidden flag --timeclock-old has been added, which reverts to
the old behavior.
The command-line interface for the hledger accounting system. Its
basic function is to read a plain text file describing financial
transactions and produce useful reports.