Bob's scaler clock and VME timeout counter bugfixes
Make THaScalerDB functions const as appropriate. Consistent STL data types.

This should finally make THaScalerDB 64-bit safe (to be tested).
Also, Remove all trailing whitespace.
Use typedef for key_type of THaScalerDB::channame.
Fix buggy install target in the Makefile (bugfix from Release-150 branch)
Allow setting of scaler code verbosity (debug messages) at run time via SetDebug

Consistent with the rest of the analyzer, debug messages are only compiled
if WITH_DEBUG is set.

By default, THaScaler also sets the verbosity of the database class THaScalerDB.
To debug only THaScaler, do something like

scalers->Init(...);
scalers->SetDebug(1);
scalers->GetDatabase()->SetDebug(0);