Added support for start and end marketing date to NDC package

Also updated build.gradle to prepare for release.

Author: ctmay4

README.md

@@ -29,14 +29,14 @@ Download [the latest JAR][1] or grab via Maven:
 <dependency>
     <groupId>com.imsweb</groupId>
     <artifactId>seerapi-client-java</artifactId>
-    <version>3.6</version>
+    <version>3.7</version>
 </dependency>
 ```
 
 or via Gradle:
 
 ```
-compile 'com.imsweb:seerapi-client-java:3.6'
+compile 'com.imsweb:seerapi-client-java:3.7'
 ```
 
 ## Usage

build.gradle

@@ -10,7 +10,7 @@ plugins {
 }
 
 group = 'com.imsweb'
-version = '3.7-SNAPSHOT'
+version = '3.7'
 description = 'Java client library for SEER*API'
 
 println "Starting build using ${Jvm.current()}"

src/main/java/com/imsweb/seerapi/client/ndc/NdcPackage.java

@@ -13,6 +13,10 @@ public class NdcPackage {
     private String _code;
     @JsonProperty("description")
     private String _description;
+    @JsonProperty("start_marketing_date")
+    private String _startMarketingDate;
+    @JsonProperty("end_marketing_date")
+    private String _endMarketingDate;
 
     public String getCode() {
         return _code;
@@ -29,4 +33,20 @@ public String getDescription() {
     public void setDescription(String description) {
         _description = description;
     }
+
+    public String getStartMarketingDate() {
+        return _startMarketingDate;
+    }
+
+    public void setStartMarketingDate(String startMarketingDate) {
+        _startMarketingDate = startMarketingDate;
+    }
+
+    public String getEndMarketingDate() {
+        return _endMarketingDate;
+    }
+
+    public void setEndMarketingDate(String endMarketingDate) {
+        _endMarketingDate = endMarketingDate;
+    }
 }