Maven repository

Rebuild with maven on my github.Now you can use 

```
<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io</url>
    </repository>
 </repositories>

 <dependency>
        <groupId>com.github.SettingDust</groupId>
        <artifactId>MCCore</artifactId>
        <version>master-SNAPSHOT</version>
 </dependency>
```

to build Maven project!
