Update i18next.js

Very small change to the "_translate" function to simply return the key in debug mode (lines 1043-4)
Update i18next.js

Removed previous edit for debug mode and fixed cimode, which occasionally has values come back as empty strings rather than undefined - if you can figure out how the empty strings are coming back, please advise.
Merge pull request #249 from dwbodine/master

Update i18next.js