[OLINGO-296] fix JSON EdmSingle format
[OLINGO-296] JUnit and Edm.double
[OLINGO-296] fix rat issue
[OLINGO-47] Support for $batch


Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-305] fixed (case insensitve header)
[OLINGO-305] additional unit test
[OLINGO-308] fix + test implemented
[OLINGO-308] fix for json
Fixed crash when Member paths include Navigation Properties. Expression Parser now casts to EdmMappable instead of EdmProperty.
Closing JPA transaction in finally clause in case an exception is thrown.
Fixed cast check for non-tombstone listeners.

Casting was succeeding and failing at a later point, which meant non-tombstone listeners caused the requests to fail.
Added S3 Repository
[OLINGO-298] Fixed response status and removed NotAllowedException
[OLINGO-308] rollback
Fixed supporting null in comparisons
[OLINGO-257] fix potential resource leaks
[OLINGO-307] Fixed location header for redirect
[OLINGO-224] Update reference scenario to showcase Delta Token
Implementation

Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-224] Added missing license header
fixed date format for HQL