- removed unnecessary using directives in Data library
- removed iterator pointers from Var (reduce size, always return copy)
- added Alignment header (adapted from LLVM infrastructure)
- added alignment guards to SOO implementations
1) Recursive and SortedDirectoryIterator
- added to VS projects
- fixed some style/formatting
- fxed windows tests
2) Added ListMap
Poco::ListMap is a std::mulitimap-like container that preserves
insertion order (needed to prevent Net message headers)