Pictures tiles TestService must use the right tmp dir

org.nuxeo.ecm.platform.pictures.tiles.service.test.TestService creates a folder at root of the module: nuxeo-features/nuxeo-platform-imaging-tiling/nuxeo-platform-imaging-tiling/${nuxeo.tmp.dir}/

That may be due to NXP-18667 but the patched testLazy() method does not generate that folder when it's run solely...

In the mean time it needs a global review:

• hardcoded paths
• use of deprecated methods
• use of System.out
• migrate from NXRuntimeTestCase to @RunWith(FeaturesRunner.class)

Also, the org.nuxeo.ecm.platform.pictures.tiles.service.test.TestAdapters is ignored for very long time:

• change

  // NXP-13240: temporarily disabled
  @Ignore

  to @Ignore("NXP-13240")

• wake up NXP-13240

Prioritized as major because that creates an unknown file to Git and may create issues:

$ git status
HEAD detached at release-8.3-I20160706_2325
Untracked files:
  (use "git add <file>..." to include in what will be committed)
	nuxeo-features/nuxeo-platform-imaging-tiling/nuxeo-platform-imaging-tiling/${nuxeo.tmp.dir}/