Squashed 'lib/js2-mode/' changes from 757ae4b..714dca5

714dca5 Bump the version
c6ca082 js2-next-error: Always echo error text
9e7c6bd Fix #106
1c53de7 Introduce js2-init-hook

git-subtree-dir: lib/js2-mode
git-subtree-split: 714dca50644c75884d9d90f10328c7a12e02cdcc
Merge commit '03fa22bebbf51c2431d1028bd191f193f6671d8e'

Update js2-mode