remove unneeded variable
Adding update
add intermediateSelectCommand
add break
Undo/Redo recovery
Remove sysos
bug fix
bug fix
fix conflicts
bug fixes
bug fixes
remove extra line
bug fix
remove debugging code
Merge pull request #25 from medo/sara_intermediateSelect

Sara intermediate select
Merge pull request #24 from medo/sara_update

Sara update
Recovery manager
Merge pull request #23 from medo/Almgohar_RecoveryManager

Almgohar recovery manager
fix transactionManager
Remove sysos