LENS:54 : Logout successfully even in case of server errors (Raju Bairishetti via amareshwari)
LENS-60 : Checkstyle related changes/fixes for lens-server-api ( Rajat Khandelwal via amareshwari)

Conflicts:
	lens-api/pom.xml
LENS-49 : Fixes query history on UI resource ( Raju Bairishetti via amareshwari)
LENS-51 : TestStaticFileResource to generate port dynamically and post (Raju Bairishetti via amareshwari)