don't processEvents during rollback

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1586946 13f79535-47bb-0310-9956-ffa450edef68
tests: harden this test due to a current short coming in the collections api.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587099 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5980: Add a test.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587149 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5603: fix hunspell to use FST efficiently

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587162 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5067: add a BaseDirectoryTestCase

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587440 13f79535-47bb-0310-9956-ffa450edef68
merge 4.7.2 CHANGES

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587465 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5604: switch BytesRef/BytesRefHash hashing to MurmurHash3

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587489 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5604: woops, remove diagnostic conflict counter

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587509 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5602: CHANGES shuffle

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587578 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5067: fix testThreadSafety to actually test the dir in question (not copy into random impl), fix performance issues, remove Nightly

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587592 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5067: add more tests

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587625 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5604: switch these 'many terms' tests back to previous adversarial hash conflict case

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587685 13f79535-47bb-0310-9956-ffa450edef68
switch case fallthrough is OK here

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587689 13f79535-47bb-0310-9956-ffa450edef68
 SOLR-5904: ElectionContext can cancel an election when it should not if there was an exception while trying to register as the leader. 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587702 13f79535-47bb-0310-9956-ffa450edef68
SOLR-5954: Slower DataImportHandler process caused by not reusing jdbc connections.

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587706 13f79535-47bb-0310-9956-ffa450edef68
LUCENE-5606: un-ignore monster tests, instead annotate with a test group so they can be optionally run

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587769 13f79535-47bb-0310-9956-ffa450edef68