Format breakout format options into small bit of code

This pulls the eventlist -> json out of zeromq and makes it available for general usage.  

Json is always compiled in now not only when zeromq is used.  



> On Nov 17, 2014, at 7:42 AM, cgzones <notifications@github.com> wrote:
> 
> In src/Makefile:
> 
> > @@ -34,6 +34,9 @@ DEFINES+=-DREMUSER=\"${OSSEC_USER_REM}\"
> >  DEFINES+=-DGROUPGLOBAL=\"${OSSEC_GROUP}\"
> >  DEFINES+=-DMAILUSER=\"${OSSEC_USER_MAIL}\"
> >  
> > +
> > +LDFLAGS+=-lm
> why this addition here?
> 
> —
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