v2.0.0

• Upgrade to 2.0.0 and rename it to JParticles.
• Add new effect: waveLoading - simulation progress bar to load.
• All effects: add onDestroy() event.
• All effects: chaining operation support for events.
• particle: add new lineShape parameter to define the line shape of the particles.
• particle: add new parallax parameter to create parallax effect.
• particle: increase the feature of the gyroscope, for the positioning point and parallax effect.
• particle: enhance range and proximity parameters support the value of (0, 1).
• particle: adjust the distance parameter to proximity to get closer to it's functional meaning.
• wave: add new setOptions() method.
• wave: remove original setOffsetTop() method.
• wave: adjust the stroke parameter to line to unify style.