Merge pull request #1 from letsgoINGStudent/dev_cloneOnlyOne

src/main/java/edu/mit/blocks/codeblocks/BlockGenus.java

src/main/java/edu/mit/blocks/codeblocks/InfixBlockShape.java

src/main/java/edu/mit/blocks/renderable/NameLabel.java

src/main/java/edu/mit/blocks/renderable/RenderableBlock.java

src/main/java/edu/mit/blocks/renderable/SocketLabel.java

src/main/java/edu/mit/blocks/workspace/ContextMenu.java