Support har format

Now .har format is supported.
Use pcap2ammo or har2ammo executable scripts to convert pcap or har files to Yandex-tank ammo.

Unify and simplify filters

Unify and simplify HTTP filters. Remove excluding filter as separate parameter. Now you can use 'not' and '!=' logical expressions instead.

Add HTTP filters

TCP/IP packets and HTTP requests can be filtered flexibly with pcap2ammo script.

Add pcap2ammo script

Convert pcap file to Yandex-tank ammo format directly with pcap2ammo script.

The first public release

1.0.2

update documentation and setup info