Multiple things, see below,

- Cleaned up permissions we're requesting (next on the chopping
  block are the plugins in config.xml)
- Adjusted main.xml to fix some odd positioning issues with
  wrapping layouts
- re-included cordova-2.7.0.js in index.html so I could access
  openUrl() to open tadl.org's full site in an external browser
  rather than webview

Signed-off-by: William Rockwood <wrockwood@tadl.org>