Adjustment for Android devices
1. Some classes been hided not to be loaded if no need - AdvancedDeviceUtils
2. BlockQueue introduced, will separate the net layer from the execution layer.
3. MainData vanished, all globals are managed out of the WorldManager
4. DB is now can be saved in location specified by a param.
5. The core lib should have a facade to expose the functionality Ethereum.java interface and the properimpemintation is introduced for that reason.
6. pom.xml the option to deploy sources to the repository.
7. new properties detailed descripted in system.properties