Fix change-version.sh

- previously excluded any file contain log or war, rather than
  just .log and .war
- previously excluded any file with "." in a dir on its path, 
  rather than just . at the start of dir name
Update version to 0.6.0-SNAPSHOT for missed files

- Adds BROOKLYN_VERSION marker to:
-- docs/use/guide/quickstart/catalog.xml
-- usage/dist/src/main/dist/conf/catalog.xml
-- util/jmx/jmxrmi-agent/src/main/java/brooklyn/util/jmx/jmxrmi/JmxRmiAgent.java

Note that for the first two, the path is to a snapshot repo
so the URLs will only work if the new version is for a snapshot
release!
Fix EntityManagementSupport race for changeListener

- Fixes race where effector called post-exec listener concurrent
  with app.stop(), which unmanaged the app. 
  Caused exception, and thus test's tearDown to fail.
* fixed issue with release-notes page containing Liquid error: 757: u…
…nexpected token at 'Liquid error: No such file or directory - /Users/alex/Data/cloudsoft/dev/gits/brooklyn/docs/start/../../toc.json'

* fixed issue with getstartrelease notes page containing 404
added html file extension for the release-notes
Merge pull request #655 from pveentjer/docfixes

* fixed issue with release-notes page containing Liquid error: 757: u…
Fix memento/rebind of AbstractController

- serverPoolTargets has entities as keys, so needed to fix
  MementoTransformer.transformIdsToEntities so it converted
  keys and values correctly.
- Can revisit this in the future for instead using serialised 
  form of an entity-ref, rather than just String perhaps.
Merge pull request #653 from aledsage/fix/ManagementContext-race

Fix EntityManagementSupport race for changeListener
Merge pull request #649 from aledsage/fix/version-bump-0.6.0-SNAPSHOT

Fix/version bump 0.6.0 snapshot
Merge pull request #656 from aledsage/fix/rebind-NginxController

Fix memento/rebind of AbstractController
Remove old monitored-cassandra-cluster example project
Add jemalloc library to installed packages for Redis
Merge pull request #660 from grkvlt/remove-old-example

Remove old monitored-cassandra-cluster example project
Merge pull request #662 from grkvlt/redis

Add jemalloc library to installed packages for Redis