tree 39d8b493e4c2d9cccc126b53c6dce7cd59a5cfa2
parent c19318f75ec4c9a744d84be11738976a55a23310
author Xikui Wang <xkkwww@gmail.com> 1489450109 -0700
committer Xikui Wang <xkkwww@gmail.com> 1489704332 -0700

Feed Exception Revise

1. Add compliation exception for missing Twitter4J library. Try to
expose this exception when create feed.
2. Tweaked 'invalid feed parameter exception'. Expose detailed exception
information to front end.
3. Related test cases fix.

Change-Id: Iee65b2a5365067c9ba2aa1615ac23f0ace41b51e
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1534
Reviewed-by: Michael Blow <mblow@apache.org>
Tested-by: Michael Blow <mblow@apache.org>