lock OpenCV imagedisplay properly
changed CV camera calibration undistorter to 4-parameter format.
fixed bug when changing image-resolution with callibratino file
Fix typos in Readme.md
Merge branch 'master' of https://github.com/tum-vision/lsd_slam
Merge remote-tracking branch 'upstream/master'
added .f indicators possibly increasing performance
pull req from omaris:  Replacing camera matrix with projection matrix as LSD Slam assumes recti... #12
Merge remote-tracking branch 'upstream/master'