changes 20200717

src/main/java/com/ardublock/core/Context.java

src/main/java/com/ardublock/translator/Translator.java

.../java/com/ardublock/translator/block/control/IfBlock.java

src/main/java/com/ardublock/ui/OpenblocksFrame.java

...com/ardublock/ui/listener/SimulateCodeButtonListener.java

src/main/resources/com/ardublock/block/ardublock.properties

...ain/resources/com/ardublock/block/ardublock_de.properties