Changed required version to Beta 7

http://beta.woltlab.com/index.php/Thread/3277-Burning-Board-4-0-Beta-7-Download/?postID=27703#post27703
a bit modify for push feature on framework level

Signed-off-by: TomWu <phperwuhan@gmail.com>
update smartbanner

Signed-off-by: TomWu <phperwuhan@gmail.com>
modify readme

Signed-off-by: TomWu <phperwuhan@gmail.com>
fixed bug:return wrong total_topic_num type

Signed-off-by: TomWu <phperwuhan@gmail.com>
Merge pull request #9 from SoftCreatR/b7

Changed required version to Beta 7
fixed bug:return wrong data type in some fields

Signed-off-by: TomWu <phperwuhan@gmail.com>
Merge branch 'master' of https://github.com/tapatalk/wbb
code optimization

Signed-off-by: TomWu <phperwuhan@gmail.com>
a bit modify for compatible on some sites with lower version than Beta 7.

Signed-off-by: TomWu <phperwuhan@gmail.com>
confirm support for WoltLab Burning Board 4.0 Beta 7.

Signed-off-by: TomWu <phperwuhan@gmail.com>