Added ability for any spaces found in the Ganglia Group name (source) to be converted to underscores "_" before sending to Graphite.
Added ability for any spaces found in the Ganglia Group name (source) to be
converted to underscores "_" before sending to Graphite.

If the Ganglia GRid / Group for any given metric has spaces in the name e.g.
data_source "Development Servers", this space will be rejected by Graphite.
This patch converts spaces to underscores "_".

NoodlesNZ/monitor-core,lawrencewu/monitor-core,hinesmr/monitor-core,sdgdsffdsfff/monitor-core,torkelsson/monitor-core,dmourati/monitor-core,dmourati/monitor-core,ganglia/monitor-core,NoodlesNZ/monitor-core,sdgdsffdsfff/monitor-core,mjzhou/monitor-core,fastly/monitor-core,hinesmr/monitor-core,ganglia/monitor-core,phreakocious/monitor-core,mjzhou/monitor-core,sdgdsffdsfff/monitor-core,phreakocious/monitor-core,ganglia/monitor-core,NoodlesNZ/monitor-core,hinesmr/monitor-core,NoodlesNZ/monitor-core,phreakocious/monitor-core,dmourati/monitor-core,ganglia/monitor-core,torkelsson/monitor-core,sdgdsffdsfff/monitor-core,phreakocious/monitor-core,fastly/monitor-core,NoodlesNZ/monitor-core,lawrencewu/monitor-core,phreakocious/monitor-core,mjzhou/monitor-core,mjzhou/monitor-core,NoodlesNZ/monitor-core,dmourati/monitor-core,phreakocious/monitor-core,sdgdsffdsfff/monitor-core,lawrencewu/monitor-core,fastly/monitor-core,torkelsson/monitor-core,lawrencewu/monitor-core,fastly/monitor-core,mjzhou/monitor-core,phreakocious/monitor-core,lawrencewu/monitor-core,sdgdsffdsfff/monitor-core,fastly/monitor-core,NoodlesNZ/monitor-core,lawrencewu/monitor-core,fastly/monitor-core,dmourati/monitor-core,ganglia/monitor-core,torkelsson/monitor-core,torkelsson/monitor-core,ganglia/monitor-core,mjzhou/monitor-core,hinesmr/monitor-core,lawrencewu/monitor-core,fastly/monitor-core,torkelsson/monitor-core,ganglia/monitor-core,ganglia/monitor-core,torkelsson/monitor-core,mjzhou/monitor-core,hinesmr/monitor-core,sdgdsffdsfff/monitor-core,dmourati/monitor-core