A Java HTTP client for Nitro

1. Add a maven dependency:

       <dependency>
          <groupId>com.metabroadcast.atlas.glycerin</groupId>
          <artifactId>glycerin</artifactId>
          <version>0.1.11</version>
      </dependency>
      ```
You'll need the MetaBroadcast repository: `http://mvn.metabroadcast.com/all`

1. Create a Glycerin instance: 
```java
Glycerin glycerin = XmlGlycerin.builder(apiKey);

1. Execute a query:

GlycerinResponse<Broadcast> broadcasts = glycerin.execute(BroadcastQuery.builder() .withDescendantsOf("b039gr8y").build());

Glycerin is built with gradle. In the glycerin directory:

• gradle compileJava will generate and compile glycerin.
• gradle install will install maven artifacts into a local mvn repo.

Code is generated from:

• the XML schema via XJC. The bindings are regenerated using the generateXmlSource task from the nitro-schema.xsd.
• From the API description using the query generator in the src/queries/java package. The query sources are generated using the generateQueries task using api.xml. The description can be updated via the fetchApiDescription task with an API key.

When you need to update to newer versions

• The XSD schema can be found under /nitro/api/schema; fetch the new one into nitro-schema.xsd
• The api query schema can be under /nitro/api; fetch the new one into api.xml