properly resolved the zombie process issue under Linux
Merge branch 'next' of github.com:maidsafe/MaidSafe-Vault-Manager into next
minor bugfix.
resolved hanging during quit problem ; resolved segmentation fault when killing a vault problem
Merge branch 'next' of github.com:maidsafe/MaidSafe-Vault-Manager into next
more logs in VaultManager
log the situation when a vault stopped
Merge remote-tracking branch 'origin/next' into sqlite