Correct the profile name in Travis configuration

Author: wilkinsona

.travis.yml

@@ -1,5 +1,5 @@
 language: java
 services: mongodb
 
-install: mvn install -q -U -DskipTests=true -Dmaven.test.redirectTestOutputToFile=true -P spring-snapshot
+install: mvn install -q -U -DskipTests=true -Dmaven.test.redirectTestOutputToFile=true -P snapshot
 script: mvn install -q -nsu -Dmaven.test.redirectTestOutputToFile=true -P '!integration'