exclude iso9660 filesystems from riemann-health.

[gitboy]

should not be raising alerts for filesystems mounted via loopback mount on iso9660 images.

[jamtur01]

@gitboy Is there a good way to detect and skip these?

[gitboy]

@jamtur01 i did this;

(where (or (and (service #"disk .*") (not (service #"disk /media")))
           (service #"proc .*")
           (service "memory") 
           (service "load")
           (service "cpu"))

which only helps for one specific mountpoint, in general any iso9660 fs should be excluded imo.

[jamtur01]

Closed by #145.

[jamtur01]

@gitboy If you could test the patch in #145 that'd be awesome. Thanks!