Fixes bug 454748: if the outline is loaded in the background, "Loading..." is shown until the content becomes available

Signed-off-by: Miro Spönemann <miro.spoenemann@itemis.de>
[338904] Added option to suppress load initialization in generated EMF package implementation

Signed-off-by: Miro Spönemann <miro.spoenemann@itemis.de>
Merge "Fixes bug 454748: if the outline is loaded in the background, "Loading..." is shown until the content becomes available"
Merge "[338904] Added option to suppress load initialization in generated EMF package implementation"
[338904] Modified file extension of ecore file that is generated for load initialization

Signed-off-by: Miro Spönemann <miro.spoenemann@itemis.de>