Avoid NOTICE errors in _getCommonCharAtPos
Merge branch 'master' of https://github.com/mrclay/minify

* 'master' of https://github.com/mrclay/minify:
  Avoid NOTICE errors in _getCommonCharAtPos
Fixes #158: Builder works on SSL

http://code.google.com/p/minify/issues/detail?id=158
Merge branch 'master' of https://github.com/mrclay/minify

* 'master' of https://github.com/mrclay/minify:
  Fixes #158: Builder works on SSL