Added IndexStorageSize and TransactionalStoreSize to new Responder database/storage/sizes

To get a better view into actual storage, in case of planning out
hardware infrastructure, I added the ability to see IndexStorageSize and
TransactionalStorageSize separate, in addition to the TotalSize.
Fixed naming to be more precise

To make more clear, fixed names to be as follows:

TransactionalStorageSize
IndexStorageSize
TotalDatabaseSize

Also fixed a name mismatch to variable.
Renamed variables to better match actual values

Ensuring consistency in naming of variables to match what values they
hold.
JET_paramEnableIndexCleanup is only supported on Windows Server 2003 and up
Fixing race condition between disposing a subscription and creating a new one for the same document
Merge branch 'master' of https://github.com/tzarger/ravendb
Merge branch 'master' of https://github.com/e-tobi/ravendb
Better errors on SQL issues
More rapid retries