v0.1.6
Add new option: blockclean.
Change `reset` to option.
Update README for reset and blockclean
v0.1.6 test ok
Merge branch 'experiment'

v0.1.6
Add option `--blockclean` for clean block list only.
Modify `reset` to option `--reset`
Bug fix of Update2ApacheBlock function, "exit" => error

Conflicts:
	main.pl
v0.1.6.1
Update README