flume-667: stacks webapps is missing from node and master / flume-668: add logs webapp to master and node.

Review Request #1828 — Created June 18, 2011 and submitted — Latest diff uploaded

flume-667, flume-668
arvind, esammer
stacks is a webapplet that didn't make it with the maven transition but is one that is critical for debugging deadlocking problems.  Re-added

logs is a a webapplet that points to a dir and allows the files to be browsed.  This is great for log files.
started master/node in eclipse, then went to /stacks or /logs urls.

There is currently no unit tests on this functionality.  I feel that it may be possible (as well as getting the jersey related servlet in here as well).