1.8.7

• Update project unity engine version to 2018.3.11f1.
• Complete tooltips.
• Add missing tooltips.
• Format code with JCSUnity's standards.
• Clean up some code and polished some classes' description.
• Complete Action/Freeze module's components.
• Format code, supply missing tooltips and function descriptions.
• Release JCS_ToggleButton's getter/setter and make some improvements with more reasonable function calls.
• Fixed travis CI by removing rvm get stable command.
• Supply missing tooltips and function descriptions.
• Fixed some class descriptions.
• Format action modules, and supply tooltips.
• Update some tooltips and class descriptions.
• Organize project with features directory.
• Update tooltips' typo.
• Remove JCSUnity_PE and officially use UnityPackageExporter instead.
• Fixed tooltips for particle module.
• Update tooltips and fixed typo.
• Update tooltips for better description.
• Release some api calls.
• Organize code.
• Polish tooltips.
• Fixed minor tooltips and section's format.
• Update some modules' description.
• Fixed classes' description.
• Fixed enum module's description.
• Remove trailing empty line from multiple files.
• Organize code and fixed classes' description.
• Add back and forth times => JCS_DestroyAnimBackForthEvent.cs.
• Add header splitter, organize code.
• Update some classes' description.
• Organized legacy code, components, etc.
• Fixed some typo, class descriptions and variables descriptions.
• Fixed some typo and class descriptions.
• Fixed some of the APIs' getter/setter.