Updated changelog and release version
Merge branch 'master' of github.com:allendevco/pill-logger
Attempting to fix bug with the comparator

https://crashlytics.com/allen-dev-co/android/apps/uk.co.pilllogger/issues/536ad9b2e3de5099ba2c9a12
Attempted fix for concurrent modification bug with observer

https://crashlytics.com/allen-dev-co/android/apps/uk.co.pilllogger/issues/53770478e3de5099ba3726d4
Fix for theme choice dialog
Fixed non-compiling MainActivity
Changed view pager to have more fragments in memory, improves perf