Adding programmatic configuration for Hazelcast in embedded vert.x

Signed-off-by: Dean Pehrsson-Chapman <dean@p14n.com>
Merge pull request #780 from englishtown/feature/modjsonclassloader

Added ModJSONClassLoader for the DefaultPlatformManager
Ensure NetServer handlers are run in correct sequence by managing them ourselves (work around Netty bug)
Amendments after feedback from purplefox

Signed-off-by: Dean Pehrsson-Chapman <dean@p14n.com>
minor test fixes

- use -Dvertx.mods for PullInDeps test
- don't litter the root folder with my-404-error.html files, use a tmp dir.

Signed-off-by: Henning Schmiedehausen <henning@schmiedehausen.org>
Merge pull request #764 from hgschmie/test-fixes

minor test fixes
Changing static config to volatile to prevent possible thread local cache.

Signed-off-by: Dean Pehrsson-Chapman <dean@p14n.com>
Add support to append and set bytes on a Buffer with an offset and length.

See BZ 425958
Merge pull request #779 from eclipse/buffer

Add support to append and set bytes on a Buffer with an offset and lengt...
add note about github Id
Fix buffer leak when using NetServer and NetClient. See BZ-426824
Merge branch 'master' of github.com:eclipse/vert.x
Updated licence headers on Red Hat and Netty files after RedHat and Netty agreed to relicence them under dual Apache License v2.0 / Eclipse Public License 1.0
Make sure all buffer leaks are logged during the testsuite run

* Also fix a leak in a test
* Use the correct allocator for the dnsclient
Merge pull request #785 from eclipse/leak

Detect leaks during running the testsuite
removed a couple of system.out.println
release 2.1M4
inced version
change hazelcast version
inced version