Merge pull request #331 from UNC-Libraries/travis-cache-maven

Cache downloaded Maven artifacts

Author: bbpennel

.travis.yml

@@ -4,3 +4,6 @@ services:
   - redis-server
 script: mvn test -pl access-common,access,admin,deposit,fcrepo-cdr-fesl,fcrepo-clients,fcrepo-irods-storage,metadata,persistence,security,solr-ingest,solr-search,sword-server
 sudo: false
+cache:
+  directories:
+    - "$HOME/.m2/repository"