v0.1.0

Changelog

854dfa1 bug: nil pointer dereference on split (#25)
91afa38 feature: hash command (#22)
527e7ac feature: implement count command (#24)
0a3af10 feature: implement match command (#26)
b8124ac refactor: help/version commands don't return error (#21)
91636dc refactor: refactor replace command mem allocation (#19)