Change executable name within the README

The README claims that the shell script is named `neoviz`.
Cleanup for TransactionCommitProcess
Fix a problem when recovering caused by the fact that the new log version wasn't flushed
on disk after a log rotation.

o reenable tests in IndexRecoveryIT
Merge pull request #2683 from arusahni/patch-1

Change executable name within the graphviz README
Merge pull request #2738 from davidegrohmann/cleanup-tx-commit-process

Cleanup for TransactionCommitProcess
Merge pull request #2742 from davidegrohmann/fix-flush-log-ver-on-log-rotation

Force flush on disk of the new log version after a log rotation
Add an implementation to clearCache()
Remove old unnecessary old configuration from the test