[Qt] Fix Start bitcoin on system login
remove LookupHostNumeric( ) which is never used
remove GetMedianTime( ) which is never used

Conflicts:
	src/main.cpp
	src/main.h
remove CPubKey::VerifyCompact( ) which is never used

Conflicts:
	src/key.cpp
	src/key.h
remove LogException( ) which is never used

Conflicts:
	src/util.cpp
	src/util.h
Merge branch 'master' of https://github.com/ralphtheninja/blackcoin
Relay OP_RETURN TxOut as standard transaction type
Show short scriptPubKeys correctly

Previously bitcoin-qt's -debug transaction info was showing CTxOut([error])

It is valid for a scriptPubKey to be any size, for example simply
OP_RETURN is valid and can be used to destroy a TXOUT to mining fees.

Conflicts:
	src/core.cpp