chore(project): 添加项目配置文件和忽略规则

- 添加 Babel 配置文件支持 ES6+ 语法转换
- 添加 ESLint 忽略规则和配置文件
- 添加 Git 忽略规则文件
- 添加 Travis CI 配置文件
- 添加 1.4.2 版本变更日志文件
- 添加 Helm 图表辅助模板文件
- 添加 Helm 忽略规则文件

.github/ISSUE_TEMPLATE/FEATURE_REQUEST.md

@@ -0,0 +1,16 @@
+---
+name: Feature Request
+about: Suggest an idea for Seata
+
+---
+
+## Why you need it?
+ Is your feature request related to a problem? Please describe in details
+
+
+## How it could be?
+A clear and concise description of what you want to happen. You can explain more about input of the feature, and output of it.
+
+
+## Other related information
+Add any other context or screenshots about the feature request here.