add utils/install.sh
feat(utils/instal.sh): add PREFIX_BIN

example:
export PREFIX_BIN=~/ && cat utils/install.sh|bash
doc(readme): bump instalation section
doc(readme): add 'How it can be used' section
add simple benchmarks
add `make benchmark`
add .travis.yml
test
fix Makefile, add get vet
bump readme
feat(install.sh): bump installer
separate senders as module
remove dummy code
first test
tiny fix in globals
tiny refactor
add mysql sender
add RegisterNewSender
tiny fixes
bump readme