Fix tests [RED]

  BatchInsertDocTest.insert:69 » OutOfMemory Java heap space
  IndexingAcceptanceTest.shouldCorrectlyUpdateIndexesWhenChangingLabelsAndPropertyMultipleTimesAllAtOnce:214
» IllegalState
  IndexingAcceptanceTest.searchingUsesIndexWhenItExists:169 »
IllegalState Index...
  IndexingAcceptanceTest.shouldCorrectlyUpdateIndexesWhenChangingLabelsAndPropertyAtTheSameTime:181
» IllegalState
  IndexingAcceptanceTest.shouldInterpretPropertyAsChangedEvenIfPropertyMovesFromOneRecordToAnother:88
» IllegalState
  SchemaAcceptanceTest.shouldRecreateDroppedIndex:336 » IllegalState
Index enter...
  InMemoryIndexIndexProviderApprovalTest>SchemaIndexProviderApprovalTest.init:144
» IllegalState
  IndexStatisticsTest.shouldProvideIndexSelectivityWhenThereAreManyDuplicates:144->awaitOnline:441
IllegalState
  IndexStatisticsTest.shouldProvideIndexStatisticsForDataCreatedWhenPopulationBeforeTheIndexIsOnline:61->awaitOnline:441
IllegalState
  IndexStatisticsTest.shouldProvideIndexStatisticsWhenIndexIsBuiltViaPopulationAndConcurrentAdditionsAndDeletions:224->awaitOnline:441
IllegalState
  IndexStatisticsTest.shouldRemoveIndexStatisticsAfterIndexIsDeleted:103->awaitOnline:441
IllegalState
  IndexStatisticsTest.shouldProvideIndexUpdates:466->awaitOnline:441
IllegalState
  IndexStatisticsTest.shouldProvideIndexStatisticsWhenIndexIsBuiltViaPopulationAndConcurrentAdditionsAndChanges:270->awaitOnline:441
IllegalState
  IndexStatisticsTest.shouldProvideIndexStatisticsForDataSeenDuringPopulationAndIgnoreDataCreatedAfterPopulation:89->awaitOnline:441
IllegalState
  IndexStatisticsTest.shouldProvideIndexStatisticsWhenIndexIsBuiltViaPopulationAndConcurrentAdditions:177->awaitOnline:441
IllegalState

Tests run: 2317, Failures: 0, Errors: 15, Skipped: 23