RFR: 7362: Reference wrong in agent plug-in.xml [v2]

[Marcus Hirt]

> Also cleaning up and making it possible to use the project from within Eclipse.

Marcus Hirt has updated the pull request incrementally with one additional commit since the last revision:

  Getting rid of warnings

-------------

Changes:
  - all: https://git.openjdk.java.net/jmc/pull/283/files
  - new: https://git.openjdk.java.net/jmc/pull/283/files/961bc83c..ba9aedda

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jmc&pr=283&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jmc&pr=283&range=00-01

  Stats: 9 lines in 2 files changed: 9 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jmc/pull/283.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/283/head:pull/283

PR: https://git.openjdk.java.net/jmc/pull/283