Avoid double Map search
Recalculate trie only when necessary
Improve binToNibble performance
Improve performance matchingNibbleLength
Remove call to WorldManager in Block constructor
More concice logging program input
Remove quotes around string in property file
Change VM log to be more like pyethereum
Outline VM log
Small refactoring
Add Unit tests for matchingNibbleLength and move to ByteUtil
Merge pull request #75 from nicksavers/master

Multiple performance fixes