Merge branch 'develop' into 'master'

...org/geant/lgservice/ecmr/CallableCommandExecutorTest.java

...a/org/geant/lgservice/infrastructure/ssh/SSHHostTest.java

src/test/java/org/geant/lgservice/integration/BaseIT.java

src/test/java/org/geant/lgservice/integration/Config.java

src/test/java/org/geant/lgservice/integration/Context.java

...g/geant/lgservice/integration/scenario/GetCommandsIT.java

.../java/org/geant/lgservice/integration/scenario/Given.java

...gservice/integration/scenario/SubmitCommandRequestIT.java

...t/java/org/geant/lgservice/integration/scenario/Then.java

...t/java/org/geant/lgservice/integration/scenario/When.java

.../java/org/geant/lgservice/security/LGUserServiceTest.java

...geant/lgservice/services/LookingGlassServiceImplTest.java

...org/geant/lgservice/services/LookingGlassServiceTest.java

src/test/resources/__files/routers.json

src/test/resources/application.yml

src/test/resources/commands_external.xml

src/test/resources/commands_internal.xml

src/test/resources/commands_public.xml