v0.1.5

Changelog

725ed17 [skip travis] add HOOKAH=0 env for skip execution
ba667d0 [skip travis] add go modules
6464717 [skip travis] change fixtures for tests
04726c6 [skip travis] change hook template
406f4d2 [skip travis] exclude tags can be defined on toplevel
4de163b [skip travis] improve docs
ec21d17 [skip travis] install hooks from config