Use tilde in package.json versions
Bump version number in files
use jQuery 1.9.1
Compile with newer YUIDoc
Fix for nested nanoScrollers, closes #115

Size diff between current branch and master
     19128        (+6)  bin/javascripts/jquery.nanoscroller.js
      7060        (+5)  bin/javascripts/jquery.nanoscroller.min.js
      2286        (+4)  bin/javascripts/jquery.nanoscroller.min.js.gz