[NUTCH-2292] Switching to maven build

[Thamme Gowda <tg...@gmail.com>]

Hi Lewis,

(CC'ing dev for visibility)
The maven build is brought up to date with the recent changes on master. It
is also upgraded to compile for JDK 8.

*What works:*
- Compilation and packaging using maven
- runtime/local build is replicated exactly as ant/ivy

*What needs to be done:*
- Fix tests
- Configure runtime/deploy
- Merge with master

*What challenges I am facing:*
- there are System.exit(...) calls within the code paths taken by tests.
Maven test runner isn't happy about it.
- Some unit tests expect plugins.folder to be available. Seems like we have
to reorganize the tests.


*How to test it:*
# All changes are at: https://github.com/apache/nutch/tree/NUTCH-2292
# git fetch -all
$ git checkout NUTCH-2292
$ mvn clean package -DskipTests # Skip the tests for now
$ cd runtime/local
# here you can run bin/crawl as before, export NUTCH_HOME=$PWD


Let me know how it goes. I will need some more hands to fix all the tests.


Cheers,
Thamme

--
*Thamme Gowda *
Grad. Student at Univ. of Southern California
@thammegowda <https://twitter.com/thammegowda> |
http://scf.usc.edu/~tnarayan/
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