* --mesh (-m) now accepts the interface:alfred_sock syntax to add multiple batman/alfred instances. Also multiple instances can be added at once now. Only one interface can be added without alfred socket support (available since 2014.4.0) though.
* --alfred-sock (-s) was dropped in favor of the new --mesh syntax, which adds the interface to socket relationship
* --vpn (-V) now accepts multiple mac addresses, ATTENTION: update your calls accordingly
* --prune defaults to int now
* --with-rrd was renamed from --rrd, to better reflect its boolean/toggle like state
Semantically, all the implemented error handling for the try-except-
blocks around calls to "maybe_node_by_mac()" or "maybe_node_by_id()" in
nodedb.py only handle the case that a particular MAC address cannot be
found in the list of known nodes. If such a MAC address cannot be found
in this list, the methods properly indicate this by raising a KeyError.
However, all the try-except-block generically catch all exceptions and
thus may cover other problems. But not only that problems might be
covered by this, generic try-except-blocks make finding errors and de-
bugging quite painful.
Hence, these try-except-blocks should only catch KeyErrors or at least
have an error handling that differs from other exceptions.
As Python interprets "(elem)" as string and not as tuple,
maybe_node_by_mac() iterates over the single characters in the MAC-
addressed passed as parameter when called parse_vis_data(). Most of the
calls already use the "(elem, )" syntax to indicate that a tuple is
passed. However, there is still one call for which this is not the case
causing a noticable longer runtime due to calls to maybe_node_by_mac()
that cannot yield any useful result.
