Changed EKF.updateFromReobservedFeature() to accept the re-observed
feature's 'absolute' location instead of observed distance and heading.
Merge branch 'feature-manager' of https://github.com/inpaner/VINS into feature-manager
Merge remote-tracking branch 'origin/feature-manager'
Fixed concurrency issue for Motion Estimation
Roughly filled in runOneCycle method
Temporary fix to "opencv library not yet loaded" issue