* Log is an overloaded term since it can also mean the debug log. We now
consistently refer to capture files as capture files or just captures
for short. The log is just for log messages and diagnostics.
* The user-facing UI was mostly already consistent, but many of the
public interfaces exposed to python needed to be renamed, and it made
more sense just to make everything consistent.
* This means that each time you open the dialog you don't start with an
empty set, instead you start with the set of counters you had
previously selected.