Merge pull request #118 from prisonerjohn/master

Added Tracker::getLastSeen()
Refactor loadProjectionMatrix() to use OF matrix functions instead of gl
Merge pull request #122 from fieldOfView/refactor_loadprojectionmatrix_offunctions

Refactor loadProjectionMatrix() to use OF matrix functions instead of gl
testApp -> ofApp
Merge branch 'master' of github.com:kylemcdonald/ofxCv
Add Kalman filter positioning API and update example-kalman
Add Kalman filter orientation API and example-kalman-euler
Merge pull request #125 from micuat/feature-kalman

Kalman filter position/orientation API
Add bUseAccel option to KalmanPosition for smoother velocity
added smile detection example
Merge branch 'master' of github.com:kylemcdonald/ofxCv
indentation
Merge pull request #127 from micuat/feature-kalman

Kalman filter: add acceleration variables for smoother velocity
fixes #120
Update readme.md

Explain toOf() vs toCv() as drawMat() alternatives
copyGray is more robust by accounting for different image types
avoid texture drawing errors
0.9.0 compat in core ofCv.
Toward 0.9.0 examples.
updates for 0.9.0