committing esri.html and esri.js
committing basic dev env stuff (application.py, esri.js, esri.html) with new folder structure.
Changed filenames, added more JS/CSS/HTML, added constants.py.
more work on JS/CSS/HTML
Revert "committing esri.html and esri.js"

This reverts commit 478cd2f760bcbb19d6eabd7c98340d32c3ecdb2f.
Merge branch 'mario'