Bump the version to 0.2.0
Drop cpd.cpdyearid field

Improves #10
Fix whitespace oddity
Strip references to CPD years from CPD model/form

Improves #10
Should no CPD years be selected, don't apply a filter

Even if CPD years have been created, don't apply them; just show all
logged activities. This works around the case where no CPD year has been
created yet which would contain the activity.
Remove CPD year association from index

Improves #10
base_model allows sorting result set in find_select()
Sort by start date
If no CPD years are selected, don't apply a filter
Tidy up query
Finalise on using between

Closes #10
Merge branch 'develop'