add travis img to readme
add postgresql to bootstrap.sh
add vm network for postgresql
add dw-bootstrap.sql
add dependencies in build.gradle
remove unused dependencies
add postgresql to travis
Merge pull request #2 from kimyen/develop

Add postgreSQL enironment
copy the code from dashboard src/main/java
modified app.java
modified some files
add resources
add tests
commit to reverse
Revert "commit to reverse "

This reverts commit 384b9979b9e8fe71b0c0aa9e0659087386754c0c.
Revert "Revert "commit to reverse ""

This reverts commit c5b8d386383c664f8fd6bd6deca6706a10a32be2.
Revert b9ab6e7..8a47d84

This rolls back to commit b9ab6e7b49da477b097f1df60c7351422798bcc5.
change the package name in context files
remove redis.xml
remove some packages in test-context