Signed-off-by: qxygxt <xingyu.q@outlook.com>

lifelong learning: issue-driven interface-adjustment and bug fix

- Reduce parameters for initial
- show all interfaces of lifelong learning in example
- fix bugs from deep learning framework

Signed-off-by: JoeyHwong <joeyhwong@gknow.cn>

1. improve the atc example words
2. fix the broken links in lifelong proposal

Signed-off-by: JoeyHwong <joeyhwong@gknow.cn>

1.fix backend env bug;
2.fix s3 upload bug;
3.fix joint_inference bug;

Signed-off-by: JoeyHwong <joeyhwong@gknow.cn>

Signed-off-by: JoeyHwong <joeyhwong@gknow.cn>

Signed-off-by: JoeyHwong <joeyhwong@gknow.cn>