Merge pull request #50 from basiliscos/0.12-dev

release v0.12

Update README.md

Update docs

Add test for #37

Merge pull request #33 from basiliscos/ivan/issue-32

relax requirements: use c++11 instead c++14

Update README.md

Update Changelog

Add nkochakian contributor

Issue #4 : remove unneeded commit on tx_buff

Improve documentation