Moved report resources into subfolder.
Added static report template.

The template currently has example content. It was created using a
generated report HTML file, but has some element IDs added.
Started to implement data loading.

data.js is an example file that will be removed once the Javascript side
of things has been completed and the file is generated by LOOT.
Finished implementing data loading.
Slight changes to data format.
Implemented JSON report data generation.

For issue #136. The PugiXML dependency has been removed. The following
limitations apply:
* Viewing reports externally doesn't currently work as the URL parameter
causes the JS file to be opened.
* The detection of change in report details is not yet re-implemented.
* The report cannot yet be translated.
Removed example report data file.

It's no longer required now that data file generation works.
Removed ability to open report in default browser.

It didn't actually add anything really useful, and the static report
HTML file broke opening the browser.
Removed report details comparison code.

I can't think of an equivalent method for the JSON data, so removing the
old code.
Tweaked report filters text.
Fixed filters being applied before data load.
Re-implemented report translation support.

The HTML is getting a bit messy now, but it works.
Updated license info to account for RequireJS.
Re-implemented "no changes" report message.

This completes issue #136.