use a table to print jmx metric listings

[clutchski]

instead of

       Matching: 1/100. Bean name: org.apache.cassandra.internal:type=MiscStage - Attribute name: TotalBlockedTasks  - Attribute type: int
       Matching: 2/100. Bean name: org.apache.cassandra.internal:type=MiscStage - Attribute name: CurrentlyBlockedTasks  - Attribute type: int
       Matching: 3/100. Bean name: org.apache.cassandra.internal:type=MiscStage - Attribute name: CoreThreads  - Attribute type: int
       Matching: 4/100. Bean name: org.apache.cassandra.internal:type=MiscStage - Attribute name: MaximumThreads  - Attribute type: int

a more readable version might be something like (obviously the wrong content) which doesn't repeat the column names on every row.

+-----------+------+------------+-----------------+
| City name | Area | Population | Annual Rainfall |
+-----------+------+------------+-----------------+
| Adelaide  | 1295 |  1158259   |      600.5      |
| Brisbane  | 5905 |  1857594   |      1146.4     |
| Darwin    | 112  |   120900   |      1714.7     |
| Hobart    | 1357 |   205556   |      619.5      |
| Melbourne | 1566 |  3806092   |      646.9      |
| Perth     | 5386 |  1554769   |      869.4      |
| Sydney    | 2058 |  4336374   |      1214.8     |
+-----------+------+------------+-----------------+

we could use:

https://code.google.com/p/prettytable/

or just a csv