Initial integration of falisafe-plugin + selenium webdriver
 - Selenium dependencies reconciled
 - 'mvn verify -DskipTests' now runs ONLY selenium end-to-end tests
 - simple screenshot implementation added
deamon -> daemon
Merge branch 'master' into webdriver-for-interation-tests

Conflicts:
	zeppelin-zengine/pom.xml
Resolve dependency conflict
Make ITtest run directly from eclipse.
Also make it consider profile build-distr
Resolve class not found error raised from selenium HtmlUnitDriver
make 'mvn clean' also clean generated webapp resources
Create dummy console object when browser does not support
build zeppelin-web before zeppelin-server, so zeppelin-server's integration test uses zeppelin-web package
Ability to set test server url
Add missing tag
Click new and wait for new job created
Print more log to debug start failure on travis ci
Determine number of logs to print by execution environment. when it is failed.
Remove server-api dependecy from jetty.
on CI, wait until server is completely running
Fix indent
Handling changing Hive11 jdbc driver's behavior when there's no data returned from query
Implement run query and check result