Xuehe

1. gcc 7 2. ubuntu16.04 ``` =========================================== using FEJ... estimating td... initial td = 0 estimating extrinsic... not calibrating imu instrinsic online... Hybrid MSCKF...Maximum number of feature in state is...

first, you should modify the fomat about this order like this in the readme.md `sudo usermod -a -G docker $USER` but sometims you need to add another order `sudo chmod...