[Solr Wiki] Update of "HowToContribute" by HossMan

[Apache Wiki <wi...@apache.org>]

Dear Wiki user,

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The following page has been changed by HossMan:
http://wiki.apache.org/solr/HowToContribute

The comment on the change is:
from https://issues.apache.org/jira/browse/SOLR-245

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  Contributors should join the [http://lucene.apache.org/solr/mailing_lists.html Solr mailing lists].  In particular, the commit list (to see changes as they are made), the dev list (to join discussions of changes) and the user list (to help others).
  
+ == Helpful Resources ==
+ 
+ The following resources may prove helpful when developing Solr contributions.  (These are not an endorsement of any specific development tools)
+ 
+    * [attachment:Eclipse.3.2.codestyle.xml Eclipse 3.2 codestyle.xml file for Solr's coding conventions]
+    * [attachment:IntelliJ.codestyle.xml IntelliJ IDEA codestyle.xml file for Solr's coding conventions]
+