Merge pull request #128 from rachmatowicz/JGRP-1799

[JGRP-1799] Increase timeout for large value RPC return value tests
- Narrowed scope of ClientLockTable.unlockAll() to prevent deadlock (https://issues.jboss.org/browse/JGRP-1761)

Conflicts:
	src/org/jgroups/protocols/Locking.java
Merge branch 'Branch_JGroups_3_2' of github.com:belaban/JGroups into Branch_JGroups_3_2
[JGRP-1805] Provide synchronized access for channel receiver.
Merge pull request #129 from rachmatowicz/JGRP-1802

[JGRP-1802]  Provide synchronized access for channel receiver.
[JGRP-1799] Increase timeout to 60s for large value RPC return value tests