kernel32: Add the directory the executable was loaded from to the module search path if the module file name doesn't contain a path.

msi: Fix an off-by-one error when calculating the path and filename for the action data in the SelfRegModules action.

The backslash is in p[0], not p[1].

msi: Create the _Property table as a temporary table so that the properties aren't saved to the .msi file.

msi: Set rec to NULL after calling msiobj_release on it in msi_create_table so that we don't call msiobj_release on it again.

The HOLD keyword just means that the non-persistent data in the table 
should be kept around, not that the table is temporary.

Implement MSI_DatabaseIsTablePersistent.

msi: The HOLD keyword implies a temporary table, whereas database importing should lead to permanent tables, so remove the HOLD keyword.

Load the data on view creation for simplicity instead of view execution.

msi: Remove the hash table for a column when one of its values is modified since it will now be invalid.

Make string table functions that aren't used outside of string.c static.

Store the loaded refcount in the string table.