README: Added additional Mac OS X build instructions
Merge pull request #37 from kevinejohn/develop

README: Added additional Mac OS X build instructions
Comments
Emit VS deug symbols on debug builds.
Automatically pull NuGet packages for batch VS builds.
Merge pull request #38 from evoskuil/develop

Comments and Windows build stuff
Remove reference to deleted organizer.hpp header.
Upadte Windows builds for blockchain refactor.
Merge pull request #39 from evoskuil/develop

Update Windows builds for blockchain refactor.
Remove NuGet leveldb dependency artifacts.
Merge pull request #40 from evoskuil/develop

Remove NuGet leveldb dependency artifacts.
Rename ec_tweak_add() to ec_add() override.
Exclude deprecated elliptic_curve_key.cppp from VS builds.
Remove elliptic_curve_key.hpp from bitcoin.hpp.
rename var for readability
Remove deprecated elliptic_curve_key.
add comments to build_merkle_tree()
tidy up satoshiwords.cpp
performance improvement for deserializer.
purge obsoleted files.