Update README.md

Stackoverflow added as questions stream.
highcharts in results
all metrics
add all default graphs
add minified js
use string.Template().safe_replace
Merge branch 'master' of github.com:yandex-load/yandex-tank
Update README.md

poeben' removed
consider empty ammo file
Merge branch 'master' of github.com:yandex-load/yandex-tank
default http proto version is 1.0, not 1.1
hot fixed hostname resolve behaviour
Merge pull request #69 from netortik/master

hot fixed hostname resolve behaviour
Merge remote-tracking branch 'upstream/master'
yandex-tank-1.4.10-1