Documentation.
Added windows and os x support for the datadir.
Repotted UPnP.
Random ports searched on fallback now.
Beginnings of foundations for event-based QML/JS integration.
Merge pull request #26 from CodeShark/windows_osx_linux_datadir

Added windows and os x support for the datadir.
Fixes for filesystem commit.
Fixed header and lib search paths for too old Crypto++.
Merge pull request #27 from SharpCoiner/cmake-crypt-patch

Fixed header and lib search paths for too old Crypto++.
Make Defaults a singleton.
Merge branch 'master' of github.com:ethereum/cpp-ethereum