File upload conks out on HL7 upload

[jsachs]

/Users/Jacob/Documents/dev/DRE/node_modules/blue-button-cms/lib/cmsTxtToIntObj.js:455
    for (var section = 0; section < sectionArray.length; section++) {
                                                ^
TypeError: Cannot read property 'length' of null
    at getIntObj (/Users/Jacob/Documents/dev/DRE/node_modules/blue-button-cms/lib/cmsTxtToIntObj.js:455:49)
    at Object.parseCMS [as parseText] (/Users/Jacob/Documents/dev/DRE/node_modules/blue-button-cms/lib/parser.js:9:18)
    at parseText (/Users/Jacob/Documents/dev/DRE/node_modules/blue-button/lib/parser.js:42:30)
    at Object.parse (/Users/Jacob/Documents/dev/DRE/node_modules/blue-button/lib/parser.js:119:20)
    at /Users/Jacob/Documents/dev/DRE/lib/storage/index.js:371:31
    at fs.js:271:14
    at Object.oncomplete (fs.js:107:15)

Looks like the parser is misidentifying it as CMS.
Dmitry wants to rewrite it.
AFL fuzz test may be a good idea to investigate breakage.