fixes for 12.1- notify-desktop: fix compatibility with libnotify >= 0.7.0
- iptables plugin: use iptables library
- ipvs plugin: disable for >= 12.1, as build fails currently
- df plugin: skip duplicate entries, fixes "uc_update: Value too old"
error

- downgrading in-tree iproute2 from 2.6.38 to 2.6.37, as 2.6.38 causes an
internal error in gcc

- add pinba plugin (through protobuf-c support)
- add rpmlintrc file to suppress false positives
- add collectd-pkgconfig_libnotify_add_gtk.patch to fix building libnotify
support on >= 11.4

- bump in-tree iproute2 to 2.6.38
- update to 4.10.3:
* collectd: Threshold subsection: Handling of NAN values in the percentage
calculation has been fixed
* collectd, java plugin, ntpd plugin: Several diagnostic messages have been
improved
* curl_json plugin: Handling of arrays has been fixed.
* libvirt plugin: A bug in reading the virtual CPU statistics has been fixed
* processes plugin: Potentially erroneous behavior has been fixed in an error
handling case
* python plugin: Fix dispatching of values from Python scripts to collectd
- changes from 4.10.2:
* collectd: If including one configuration file fails, continue with the rest
of the configuration if possible
* collectd: Fix a bug in the read function scheduling. In rare cases read
functions may not have been called as often as requested