JERSEY-2098 Response.getLocation() does not return absolute URI

- incorporated final review feedback (simplified new ServerRuntime code, fixed imports in ResourceMethodInvoker).
- added minor L10N TODO fix in ServerRuntime.

Change-Id: I3be5747a1984f87bd62bab471b17aa32f1132c0d
Signed-off-by: Marek Potociar <marek.potociar@oracle.com>
Merge "JERSEY-2098 Response.getLocation() does not return absolute URI"