Fixed several cosmetic code issues. Improved detection of same/different disk detection. Switched shared_ptrs to use std implementation instead of boost one. Cleaned up includes in headers. (CH-259)
Bugfix: crash when opening explorer's context menu (boost lexical_cast incorrectly detected underlying stream type due to the implicit cast of TString to const wchar_t) (CH-107).
Switched row data handling to not use shared pointers nor RowData object to pass information (optimization to slim down the serialization cost) (CH-103).
Adding/retrieving rows (to be serialized) now uses a single method instead of two allowing for simpler code at caller's plase (also a preparation for replacing smart pointer with a reference to real object) (CH-103).