Change zeppelin homepage address
Make one Zeppelin session shares single hive connection.
Update README.md
custom session name.
the name will be automatically persisted.
Changing session persistent directory structure from date based hierarchy to plat directory.
also change api from find -> list
Add delete button of the session and make it functioning
Merge remote-tracking branch 'upstream/master'
sub -> gsub
Result sharing (report) link, and the report page generation

ZEPPELIN-30
Error handling