ChangeLog:
+ 1.1.0+ Support creation of memory storages by providing an empty filename.
+
1.1.0: Added support for SummaryInformation and DocumentSummaryInformation
property sets. Read and write properties and list them.
[moddesc {tclstorage}]
[titledesc {Structured storage access tcl extension}]
[require Tcl 8.2]
-[require Storage [opt 1.0.0]]
+[require Storage [opt 1.1.0]]
[description]
[para]
[nl]
The mode string is as per the Tcl open command. If w is specified
the file will be created.
+[nl]
+If [arg filename] is an empty string then a storage may be created
+in-memory without a file. Once such a storage is released the memory
+will be released to the system.
[list_end]