Fix all warnings and type errors in JavaScript when compiled using Google's Closure compiler.
Fix all warnings and type errors in JavaScript when compiled using Google's Closure compiler.

tupunco/google-diff-match-patch,GerHobbelt/google-diff-match-patch,GerHobbelt/google-diff-match-patch,GerHobbelt/google-diff-match-patch,tupunco/google-diff-match-patch,tupunco/google-diff-match-patch,GerHobbelt/google-diff-match-patch,GerHobbelt/google-diff-match-patch,GerHobbelt/google-diff-match-patch,tupunco/google-diff-match-patch,tupunco/google-diff-match-patch,GerHobbelt/google-diff-match-patch,tupunco/google-diff-match-patch,GerHobbelt/google-diff-match-patch,tupunco/google-diff-match-patch