Removed the incomplete roll support and related Cesium interaction used to create roll (ol3-cesium@f2b68b0ol3)

f2b68b086719255215d237cd6c52d135450aba65.diff

diff --git a/examples/exports.html b/examples/exports.html
index 04e46f1..18b565a 100644
--- a/examples/exports.html
+++ b/examples/exports.html
@@ -35,7 +35,6 @@
                               'Distance: ' + camera.getDistance() + '<br />' +
                               'Heading: ' + camera.getHeading() + '<br />' +
                               'Tilt: ' + camera.getTilt() + '<br />' +
-                              //'Roll: ' + camera.getRoll() + '<br />' +
                               '<i>Position:</i> ' + camera.getPosition() + '<br />' +
                               '<i>Altitude:</i> ' + camera.getAltitude() + '<br />';
         };
@@ -65,7 +64,6 @@
     <br />
     <input type="button" value="setHeading(Math.PI / 6)" onclick="javascript:camera.setHeading(Math.PI / 6)" />
     <input type="button" value="setTilt(Math.PI / 8)" onclick="javascript:camera.setTilt(Math.PI / 8)" />
-    <!-- <input type="button" value="setRoll(Math.PI / 2)" onclick="javascript:camera.setRoll(Math.PI / 2)" /> -->
     <input type="button" value="setDistance(10 000 000)" onclick="javascript:camera.setDistance(10000000)" />
     <input type="button" value="setAltitude(10 000 000)" onclick="javascript:camera.setAltitude(10000000)" />
     <br />
diff --git a/src/camera.js b/src/camera.js
index af15564..5df00fe 100644
--- a/src/camera.js
+++ b/src/camera.js
@@ -63,12 +63,6 @@ olcs.Camera = function(scene, view) {
    * @type {number}
    * @private
    */
-  this.roll_ = 0;
-
-  /**
-   * @type {number}
-   * @private
-   */
   this.distance_ = 0;
 
   /**
@@ -126,23 +120,6 @@ olcs.Camera.prototype.getTilt = function() {
 
 
 /**
- * @param {number} roll In radians.
- */
-olcs.Camera.prototype.setRoll = function(roll) {
-  this.roll_ = roll;
-  this.updateCamera();
-};
-
-
-/**
- * @return {number} Roll in radians.
- */
-olcs.Camera.prototype.getRoll = function() {
-  return this.roll_;
-};
-
-
-/**
  * @param {number} distance In meters.
  */
 olcs.Camera.prototype.setDistance = function(distance) {
@@ -266,7 +243,6 @@ olcs.Camera.prototype.updateCamera = function() {
 
   this.cam_.twistLeft(this.view_.getRotation() || 0);
   if (this.tilt_) this.cam_.lookUp(this.tilt_);
-  if (this.roll_) this.cam_.twistLeft(this.roll_);
   this.cam_.moveBackward(this.distance_);
 
   this.checkCameraChange(true);
@@ -321,7 +297,7 @@ olcs.Camera.prototype.updateView = function() {
 
 
   /*
-   * Since we are positioning the target, the values of heading, tilt and roll
+   * Since we are positioning the target, the values of heading and tilt
    * need to be calculated _at the target_.
    */
   if (target) {
@@ -348,9 +324,6 @@ olcs.Camera.prototype.updateView = function() {
     // TILT
     this.tilt_ = Math.acos(Cesium.Cartesian3.dot(targetNormal,
                                                  targetToCamera)) || 0;
-
-    // TODO: ROLL
-    this.roll_ = 0;
   } else {
     // fallback when there is no target
     this.view_.setRotation(this.cam_.heading);
@@ -439,10 +412,6 @@ goog.exportSymbol('olcs.Camera.prototype.getTilt',
                   olcs.Camera.prototype.getTilt);
 goog.exportSymbol('olcs.Camera.prototype.setTilt',
                   olcs.Camera.prototype.setTilt);
-goog.exportSymbol('olcs.Camera.prototype.getRoll',
-                  olcs.Camera.prototype.getRoll);
-goog.exportSymbol('olcs.Camera.prototype.setRoll',
-                  olcs.Camera.prototype.setRoll);
 goog.exportSymbol('olcs.Camera.prototype.getDistance',
                   olcs.Camera.prototype.getDistance);
 goog.exportSymbol('olcs.Camera.prototype.setDistance',
diff --git a/src/ol3cesium.js b/src/ol3cesium.js
index 67857b6..3cf7142 100644
--- a/src/ol3cesium.js
+++ b/src/ol3cesium.js
@@ -82,10 +82,7 @@ olcs.OLCesium = function(map, opt_target) {
     'modifier': Cesium.KeyboardEventModifier.SHIFT
   });
 
-  sscc.lookEventTypes = {
-    'eventType': Cesium.CameraEventType.LEFT_DRAG,
-    'modifier': Cesium.KeyboardEventModifier.ALT
-  };
+  sscc.enableLook = false;
 
   this.scene_.camera.constrainedAxis = Cesium.Cartesian3.UNIT_Z;