[Captcha9kw] Code improvements
[Plugin] Save reason as pyfile.error when fails
[Captcha9kw] Fix str.strip
[Captcha9kw] Fix str.strip 2
[PluginManager] Use key 'version' instead 'v'
[Captcha9kw] Fix some stuff (thx stefanos)
Don't purge slash symbol on unix when save_path