Added unit test of config.go.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Enabled test task in Makefile.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Remove main.test binary in clean target.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Added precheck target.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>
Added pre-commit.txt.

Signed-off-by: Kouhei Maeda <mkouhei@palmtb.net>