Add travis config to deploy snapshots to sonatype.

This needs the actual sonatype username and password added
after running through a 'travis encrypt' command.

Only try to deploy from one entry in the matrix, so pulled
openjdk6 out of the main jdk matrix and added a separate
entry with its own script with the deploy command.

.travis-settings.xml

@@ -0,0 +1,21 @@
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
+                      http://maven.apache.org/xsd/settings-1.0.0.xsd">
+  <localRepository/>
+  <interactiveMode/>
+  <usePluginRegistry/>
+  <offline/>
+  <pluginGroups/>
+  <servers>
+    <server>
+      <id>sonatype-nexus-snapshots</id>
+      <username>${env.CI_DEPLOY_USERNAME}</username>
+      <password>${env.CI_DEPLOY_PASSWORD}</password>
+    </server>
+  </servers>
+  <mirrors/>
+  <proxies/>
+  <profiles/>
+  <activeProfiles/>
+</settings>

.travis.yml

@@ -1,9 +1,13 @@
 language: java
 script: mvn -q clean install
 jdk:
-  - openjdk6
-  - openjdk7
-  - oraclejdk7
+- openjdk7
+- oraclejdk7
+matrix:
+  # override script for jdk 6 to push snapshots to sonatype
+  include:
+    jdk: openjdk6
+    script: mvn -q clean deploy --settings .travis-settings.xml
 # whitelist
 branches:
   only:
@@ -15,3 +19,7 @@ notifications:
   irc:
     - "irc.freenode.org#cucumber"
 
+env:
+  global:
+  - secure: 'INSERT OUTPUT FROM [travis encrypt -r cucumber/cucumber-jvm "CI_DEPLOY_USERNAME=<sonatype-username>"] HERE'
+  - secure: 'INSERT OUTPUT FROM [travis encrypt -r cucumber/cucumber-jvm "CI_DEPLOY_PASSWORD=<sonatype-password>"] HERE'