generates more than one ingress rule per port
do egress filters
install egress filter
remove 'TODO' comment line
better merge of max's work, reenable security group config
Run more tests in lib/nfv/selftest.sh

iperf now runs in bidirectional mode.
iperf test is now run in the tunneled mode.
iperf test is now run both with and without jumbo frames.
Avoid division by zero in calculation of loss rate

If there are no packets sent, print loss rate '0' instead of 'NaN'.
Iterate timers list using an index instead or pairs

* Timers list is an array (of ticks), so it can be iterated using an
index. Iterating an array using an index is faster than using pairs.
* Benchmark selftest execution time. The test is now 44% faster.
* Some code refactoring.
Use index instead of pairs in method 'generate' in Fuzz apps.

* src/apps/fuzz/ethernet.lua: Iterate with index instead of pairs.
* src/apps/fuzz/ipv4.lua: Iterate with index instead of pairs.
* src/apps/fuzz/ipv6.lua: Iterate with index instead of pairs.
* src/apps/fuzz/matcher.lua: Use ipairs instead of pairs.
* src/apps/fuzz/tcp.lua: Iterate with index instead of pairs.
* src/apps/fuzz/udp.lua: Iterate with index instead of pairs.
* src/core/lib.lua: Add method for copying arrays.
Merge pull request #245 from javierguerragiraldez/neutronfilters

neutron2snabb egress filters
Merge pull request #298 from dpino/timer-replace-pairs-for-index

Iterate timers list using an index instead or pairs
Merge pull request #297 from dpino/loss-rate-avoid-division-by-zero

Avoid division by zero in calculation of loss rate
Merge pull request #296 from lukego/nfv-more-selftest

Run more tests in lib/nfv/selftest.sh
Merge pull request #299 from dpino/fuzz-apps-use-index-instead-pairs

Use index instead of pairs in method 'generate' in Fuzz apps