Fix bad xml element when generating next node
Fix bad xml element when generating next node

Fixes #2096

We were creating a text node to wrap any block connected to
next when we should have just been attaching the generated dom.

picklesrus/blockly,google/blockly,mark-friedman/blockly,google/blockly,nickmain/blockly,joshlory/blockly,mark-friedman/blockly,google/blockly,nickmain/blockly,nickmain/blockly,rachel-fenichel/blockly,twodee/blockly,mark-friedman/blockly,rachel-fenichel/blockly,twodee/blockly,google/blockly,rachel-fenichel/blockly,picklesrus/blockly,twodee/blockly,google/blockly,mark-friedman/blockly,picklesrus/blockly,rachel-fenichel/blockly,google/blockly,nickmain/blockly,mark-friedman/blockly,joshlory/blockly,joshlory/blockly,rachel-fenichel/blockly,nickmain/blockly,nickmain/blockly,rachel-fenichel/blockly,twodee/blockly,rachel-fenichel/blockly,google/blockly,twodee/blockly,mark-friedman/blockly,twodee/blockly