ColdFusion - Full 5.0/6.0/6.1 support

* README.md
  -- Updated versioning support
* src/platform/coldfusion/authenticate.py
  -- Added 5.x and updated 6.x support
* src/platform/coldfusion/auxiliary/info_dump.py
  -- Added 5.x and full 6.x support; it's a very messy regex
  cluster, but it works and should be relatively stable
  -- Ensure we auth before attempting to pull info
* src/platform/coldfusion/deployers/schedule_job_old.py
  -- Instead of making the original schedule_job.py more convoluted,
  I've added a _old version for running against ancient versions of CF.
  Hopefully this isn't confusing.
* src/platform/coldfusion/fingerprints/CF6.py
  -- 6.0 fingerprint
* src/platform/coldfusion/interfaces.py
  -- 6.x decided to add a newline in between Version and the actual
  version; strip it