Merge pull request #1 from mengzhuo/master

1. Fix cTLD parse error
2. pep8 refactor
add time control for a long-time spider
add function of removing similary url
Merge branch 'add_unqi_url' of git://github.com/jetz/second-spider into jetz-add_unqi_url

Conflicts:
	utils.py
merge uniq rule filter function from jetz
Resolve merge conflict
update author list

add jetz into author list
refactor unit test code

remove debug code. and shortcutting test code avoid setUp function called repeated
fetch url from <form action=..> and <a href=..> instead of only <a href=..>
Merge pull request #4 from jetz/add_form

fetch url from <form action=..> and <a href=..> instead of only <a href=...
update version info
Merge branch 'master' of github.com:kenshinx/second-spider
update document