Changes

[495123] Petri net example is not allowed to use snapshot repository

[495123] Updated repository ids for petri net example

[490621] Sharing the CPS demonstrator for VIATRA

The CPS demonstrator is an open source example that illustrates the
capabilities of VIATRA, and was originally developed by IncQuery Labs
Ltd. and offered for the VIATRA project.

Change-Id: Ieb584f8e95ad1e0b07b173eaa9f18d429e37bf07
Signed-off-by: Tamas Borbas <borbastomi@gmail.com>
Signed-off-by: Marton Bur <marton.bur@gmail.com>
Signed-off-by: Istvan David <davidi@inf.mit.bme.hu>
Signed-off-by: Robert Doczi <robert.doczi@incquerylabs.com>
Signed-off-by: Balazs Grill <balazs.grill@incquerylabs.com>
Signed-off-by: Denes Harmath <harmath@incquerylabs.com>
Signed-off-by: Abel Hegedus <abel.hegedus@incquerylabs.com>
Signed-off-by: Peter Lunk <lunk.peter@incquerylabs.com>
Signed-off-by: Akos Menyhert <menyhert.akos@gmail.com>
Signed-off-by: Daniel Segesdi <daniel.segesdi@incquerylabs.com>
Signed-off-by: Zoltan Ujhelyi <ujhelyiz@incquerylabs.com>

[469226][482021] Automated tests for the VIATRA framework

This commit introduces a set of test cases for (a) the query engine, and
(b) the IDE of VIATRA based on RCPTT. The test cases themselves depend
on the CPS metamodels.

Change-Id: Ic9fc6818e1521a04fc10adcb7c8a40550861456b
Signed-off-by: Tamas Borbas <borbastomi@gmail.com>