eventLog entries where comets are added are tagged with "addComet"
report practiceMode correctly in eventLog (fixes #85)
made recording of stimuli cleaner (no empty lists of stars)
tasks now log version number again (fixes #86)
always use long-form prompt with test stars (fixes #84)
added version, date, and comet hit rate to ad-hoc stargazer report
bump version to 0.5.2
Merge pull request #87 from davidmarin/stargazer-adhoc-data

More Stargazer fixes