Allow -w and -c to accept floats.
Allow -w and -c to accept floats.

Signed-off-by: Benoit Sigoure <d0ba46810740e35622837d76cd77ceb8c4bf46f5@gmail.com>

sidhhu/opentsdb,eswdd/opentsdb,kidaa/opentsdb,johann8384/opentsdb,kidaa/opentsdb,alienth/opentsdb,OpenTSDB/opentsdb,OpenTSDB/opentsdb,alienth/opentsdb,johann8384/opentsdb,MadDogTechnology/opentsdb,MadDogTechnology/opentsdb,sidhhu/opentsdb,ShefronYudy/opentsdb,andyflury/opentsdb,OpenTSDB/opentsdb,MadDogTechnology/opentsdb,andyflury/opentsdb,ShefronYudy/opentsdb,eswdd/opentsdb