Fix Common Errors on Demo/Configs

[Dogacel]

I have seen lots of inconsistencies among demo and config files. I have tried to resolve some. I think the performance of the models are also not so good. This might be related to low recall values. But still I see room for improvement. Also please consider updating MODEL_ZOO.md because it looks like there are lots of incompatible / misplaced models there.

Fixes #124, fixes #117, fixes #99, fixes #87, fixes #86, fixes #50

[Dogacel]

@lindahua @liuziwei7 @lijiancheng0614 I am planning to close this PR if it is not worth it. It's been a while since I worked with this, would be glad if you can take a quick look.

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[JYP20050208]

我发现演示文件和配置文件之间很多存在不一致。我已经尝试解决其中一些问题。我认为模型的性能也不好。这可能与较低的识别率有关。但我仍然认为还有改进的空间。另外，请考虑更新 MODEL_ZOO.md 文件，因为那里似乎有很多不兼容/放错位置的模型。

修复 #124、修复 #117、修复 #99、修复 #87、修复 #86、修复 #50

我最近在研究过程中发现代码中所有地标坐标全部用0填充，我想这可能就是只有用全局池化时才能获得良好的预测效果。同时我在预测地标时发现image.py的随机图像处理方式导致预测出的地标无法映射回原图像。请问你后续有对此项目有进一步的研究吗？如有进展希望和我讨论，谢谢。