New fuzzy check (v7.1.0) crashes if message has no comments

[rankida]

If you have a PO file that contains messages that do not have comments then it crashes with:

TypeError: Cannot read property 'flag' of undefined
    at isFuzzy (node_modules/i18next-conv/lib/gettext2json.js:182:31)
    at Object.keys.forEach.key (node_modules/i18next-conv/lib/gettext2json.js:105:39)
    at Array.forEach (<anonymous>)
    at Object.keys.forEach.m (node_modules/i18next-conv/lib/gettext2json.js:94:26)
    at Array.forEach (<anonymous>)
    at parseJSON (node_modules/i18next-conv/lib/gettext2json.js:92:21)
    at addTextLocale.then.data (node_modules/i18next-conv/lib/gettext2json.js:18:12)
    at tryCatcher (node_modules/bluebird/js/release/util.js:16:23)

The bug was added in #75

PR coming shortly...

[perrin4869]

Published as 7.1.1 and 8.0.1, thank you so much!!!