Lasso.js should not mangle page bundle names

[philidem]

This code is being used to "sanitize" the bundle name:

var pageBundleName = pageName.replace(/^[^A-Za-z0-9_\-\.]*/g, '');

This is effectively removing "special characters" at the start of the page name when forming the bundle name. However, there is no reason to sanitize the bundle name. The mangling of the bundle name prevents predictable lookup of information from the LassoPageResult after the lassoPage operation completes.