Merged revision(s) 1555587 from lucene/dev/trunk:
Add netbeans to README.txt.
As a fake commit, this also closes github pull requests #1 #2 #3 #6 #10

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/branch_4x@1555588 13f79535-47bb-0310-9956-ffa450edef68