generating junit reports in /test/reports

- karma client unit tests (only local, not in saucelabs multi-browser tests)
- frisby server unit tests
- protractor e2e tests
version 1.3.3
using docker-nodebox base image
back to dockerfile/nodejs
links to localhost repaired
server side logging shut off by default

(only logging solved challenges and generic error handler now)
logging error requests with morgan
colorized logs
log formatting fixed
preventing errors from indexOf() on undefined
detailed challenge logs
softer server shutdown if possible
Merge branch 'master' into develop
Merge pull request #48 from bkimminich/develop

minor improvements