Escape variable names correctly when serializing to XML (#1279)
Escape variable names correctly when serializing to XML (#1279)


trinketapp/blockly,trodi/blockly,twodee/blockly,joshlory/blockly,trodi/blockly,rachel-fenichel/blockly,nickmain/blockly,joshlory/blockly,mark-friedman/blockly,google/blockly,groklearning/blockly,twodee/blockly,groklearning/blockly,twodee/blockly,trodi/blockly,picklesrus/blockly,jstnhuang/blockly,joshlory/blockly,rachel-fenichel/blockly,mark-friedman/blockly,rachel-fenichel/blockly,mark-friedman/blockly,trinketapp/blockly,picklesrus/blockly,rachel-fenichel/blockly,google/blockly,twodee/blockly,nickmain/blockly,mark-friedman/blockly,picklesrus/blockly,jstnhuang/blockly,rachel-fenichel/blockly,twodee/blockly,google/blockly,nickmain/blockly,groklearning/blockly,jstnhuang/blockly,trinketapp/blockly,trodi/blockly,google/blockly,trinketapp/blockly,rachel-fenichel/blockly,nickmain/blockly,google/blockly,google/blockly,mark-friedman/blockly,nickmain/blockly,rachel-fenichel/blockly,jstnhuang/blockly,google/blockly,nickmain/blockly,mark-friedman/blockly,twodee/blockly,groklearning/blockly