linting: gosimple fixes (bengadbois#43)

use go-humanize to print data transferred sizes (bengadbois#37)

Refactor and runtime memory optimization (bengadbois#34)

* Refactor to break down large RunStress function

* Refactor for memory efficiency for request queuing

Instead of creating a channel(s) per target with every http request
pre-allocated, create a separate goroutine(s) fill the channel during
stress runtime. In cases with large (hundreds of thousands) of requests,
this will cut down on the majority of the memory used.

Upgrade to Go 1.10 (bengadbois#33)

Fix package path in ldflags

Update travis deploy

XML summary output (bengadbois#27)

New demo gif, hosted on imgur (bengadbois#10)

travis.yml updates (bengadbois#4)

Adding auto build/pushing tagged releases
Removing go 1.6 and tip
Remove golint
go vet instead of go test (no test cases exist)