[FS#132] Add support for multiple dnsmasq instances

[LEDE Bugs]

The following task has a new comment added:

FS#132 - Add support for multiple dnsmasq instances
User who did this - Karol Babioch (kbabioch)

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It seems that the link to the original patch was lost with the move to this bug tracker, so here it is: https://dev.openwrt.org/ticket/8862
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=132#comment631