Updating commotion-debug-helper to use iw instead of iwinfo and nodogsplash instead of luci_splash.
Fix use of http.getenv in commotion-debug-helper web interface.
Rename cdh.sh to cdh as luci interface expects.
Merge pull request #407 from opentechinstitute/cdh-fixes

Updating commotion-debug-helper to not use iwinfo or luci_splash. Made changes based on testing, tested by @hawkinswnaf and merged by @jheretic.