Set client version to 0.1.0.0

blankcoin-qt.pro, clientversion.h to 0.1.0.0; change to
release-process.txt even though not used right now.
Remove old target code & Update coinbase reward

changes to main.cpp
Change Target Spacing and Last PoW Block

simple main.h changes
Turn on POS after block 1000

POS turned on 80% of the way through block reward ramp up.  This is to
make sure that mining gets started, but also prevent an advantage to
very early miners who could mine blocks more frequently before POS.