initial skeletons for individual connectors
move code into new locations
build with tests working
remove dependencies provided by server from RPM package
Merge branch 'master' into issue_186

Conflicts:
	jar-connector/src/test/java/com/sixsq/slipstream/run/RunTestBase.java
add libcloud and stratuslab dependencies to connectors
Merge branch 'master' into issue_186
Refactor: Removing duplication in connector related code in both client and server.
Need to refactor connectors depending on CliConnectorBase.
Refactor step 2: Moved all connector common parts to the super class (CliConnectorBase).
Merge branch 'master' into issue_186
fix version numbers of submodules
Merge branch 'master' into issue_186
Merge branch 'master' into refactor/context_script_on_client
Merge branch 'master' into issue_186
Merge pull request #197 from slipstream/issue_186

reorganize the connector layout in preparation for move to separate repository
Updated OpenStack.
remove connector code from repository; moved to SlipStreamConnectors (#186)
do not include connectors in war file (#186)
Update parent version for release
[maven-release-plugin] prepare release SlipStreamServer-2.3.1