Switch VS projects to use vc12 openssl nuget package.
Merge pull request #4 from evoskuil/develop

Switch VS projects to use vc12 openssl nuget package.
update fetch_stealth for latest changes to libbitcoin.
updated for changes to stealth_prefix type (now a boost::dynamic_bitset)
Merge pull request #5 from veox/fix-libbitcoin-f7ac085-regression

Fix libbitcoin f7ac085 regression
subscribe by prefix instead of by address now.
merged eric's VC files.
Merge branch 'develop' into dev2

Conflicts:
	src/client/interface/client_blockchain.cpp
	src/worker/service/blockchain.cpp
rename obworker to obelisk-server
init.d (file moves): obbalancer no longer present, obworker renamed to obelisk-server.
init.d + setup.sh (file edits): obbalancer no longer present, obworker renamed to obelisk-server.
node_impl/logging: add timestamp to log_to{both,file}() in node_impl.

Factor common code into make_log_string().
node_impl/logging: get rid of {error,output}_{both,file}() wrappers.
Merge branch 'veox:log-with-timestamp' into develop
Update VS common props.
Add VS build scripts.
Update import props.
Update VS builds, add define.hpp for dll export definitions.
Tweak VS props.
Sort includes and use master header IAW libbitcoin style.