Refactored ParseFlagsAndTakeAction

Broke up ParseFlagsAndTakeAction function into 2 functions: parseFlags() and addCurators() and moved the starting of the flags and services to the Start.go file
Added three new flags, dht, drive and apps to the parseFlags function for the kademliadht, google drive and appsscript services. These services now start conditionally based on these new flags.
Merge branch 'master' of github.com:AaronGoldman/ccfs

Conflicts:
	start.go