Removing old files
Adding base for listing 6.1 (which derives from listing 5.7)
Modifying app.js to accept configuration options.
Listing 6.2: Setting the ACAO header to *
Baseline listing 6.3
Adding whitelist create function
Baseline for listing 6.4
Moving the position of the corsOption object.
Moving location of createWhitelist function
Updating listing 6.4 to validate whitelist
Baseline for listing 6.6
Adding Vary header
Adding null to origin whitelist
Baseline for listing 6.9
Adding credentials support.
Adding listing 6.11
Adding listing 6.12
Also check that acrh exists
Adding listing 6.13
Baseline for listing 6.14