* add optional tombstone field to StandardSourceDefinition and update repository methods to use it
add new ConfigRepository unit tests to cover includeTombstone logic
whitespace nits
remove accidental import
let autoformat decide whitespace
set tombstone false when creating a SourceDefinition
set tombstone in a couple missed places
remove includeTombstone param from get repository methods
check for tombstone sourceDefinition in ConfigDumpImporter
add tombstone to DestinationDefinition as well
add sourceDefinition delete endpoint, handler, and tests. also fix up some variable names (source -> sourceDefinition) because of confusion and conflicts
add api endpoint to delete destination definitions
filter via stream instead of if-continue
fix comment formatting
* gradle format