[OLINGO-458] - JPA Batch requests are not executed in a single database
transaction

Fixed -  Handling of all requests in a changeset as one single database
transaction.

Fixed - Issue with Default Naming when there is no Join Column/Column
Name specified.

Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-463] Fix empty documentation serialization
Added test case for double expand with callback
[OLINGO-411] Implement Self Join



Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-464] Fix Servlet URI bug
[OLINGO-469] Fix: Batch boundary content type with multiple parameters

Signed-off-by: Christian Amend <chrisam@apache.org>
[OLINGO-469] Additional negative tests
[OLINGO-459] Fix for supporting $links in a batch call


Signed-off-by: Chandan V A <chandan.v.a@sap.com>
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/olingo-odata2.git
[OLINGO-436] Additional test
[OLINGO-473] Build first release candidate
[OLINGO-473] Set next 2.0.2-SNAPSHOT version
[OLINGO-467] Added EdmFacets support
[OLINGO-478] Fix for operator precedence bug in ODataExpression parser
for JPA


Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-467] Fixed EdmConcurrencyControl
[OLINGO-467] Merge branch 'OLINGO-467_EdmFacetsSupport'
[OLINGO-473] Set second release candidate version RC02
[OLINGO-473] Set 2.0.2-SNAPSHOT version again
[OLINGO-473] Set release version 2.0.1
[OLINGO-473] Set new 2.0.2-SNAPSHOT version