Updated README
Added commit guidelines to let contributors make acceptable commits.
Added the usage of particle effects.
Particle effects can now be used by accessing the CraftWorld and calling
playParticleEffect() with the required arguments.
Modified the default OutputStream to be much faster.
The default method of System.out.println() takes around 7000ms per 100K
loops. This change has modified that to be around 650ms per 100K loops.