acu171052 admin mode
run in background using --start and --stop
cleanup temporary files on trap(:INT) somewhat painfully
defeated built-in rack logging in favor of our custom info-level logging
acu171052 need to avoid refererence to Bundler when gem binary is run without it
bundler must still be gem installed to run the MightApi service, but not needed initially
Merge pull request #20 from rightscale/sapphire_12_13_acu171052_might_api_admin_mode

sapphire_12_13_acu171052_might_api_admin_mode