Fix all faulty {@true} doc statements.

src/basic/Point.js

@@ -726,7 +726,7 @@ var Point = Base.extend(/** @lends Point# */{
 	/**
 	 * Checks if this point has both the x and y coordinate set to 0.
 	 *
-	 * @returns {Boolean} {@true both x and y are 0}
+	 * @returns {Boolean} {@true if both x and y are 0}
 	 */
 	isZero: function() {
 		return Numerical.isZero(this.x) && Numerical.isZero(this.y);
@@ -792,7 +792,7 @@ var Point = Base.extend(/** @lends Point# */{
 	 *
 	 * @name Point#selected
 	 * @property
-	 * @return {Boolean} {@true the point is selected}
+	 * @return {Boolean} {@true if the point is selected}
 	 */
 
 	/**

src/basic/Rectangle.js

@@ -482,7 +482,7 @@ var Rectangle = Base.extend(/** @lends Rectangle# */{
 	},
 
 	/**
-	 * @return {Boolean} {@true the rectangle is empty}
+	 * @return {Boolean} {@true if the rectangle is empty}
 	 */
 	isEmpty: function() {
 		return this.width === 0 || this.height === 0;

src/basic/Size.js

@@ -375,7 +375,7 @@ var Size = Base.extend(/** @lends Size# */{
 	 * {@grouptitle Tests}
 	 * Checks if this size has both the width and height set to 0.
 	 *
-	 * @return {Boolean} {@true both width and height are 0}
+	 * @return {Boolean} {@true if both width and height are 0}
 	 */
 	isZero: function() {
 		return Numerical.isZero(this.width) && Numerical.isZero(this.height);

src/item/Item.js

@@ -2043,7 +2043,7 @@ var Item = Base.extend(Callback, /** @lends Item# */{
 	 * Moves this item above the specified item.
 	 *
 	 * @param {Item} item The item above which it should be moved
-	 * @return {Boolean} {@true it was moved}
+	 * @return {Boolean} {@true if it was moved}
 	 * @deprecated use {@link #insertAbove(item)} instead.
 	 */
 	moveAbove: '#insertAbove',
@@ -2052,7 +2052,7 @@ var Item = Base.extend(Callback, /** @lends Item# */{
 	 * Moves the item below the specified item.
 	 *
 	 * @param {Item} item the item below which it should be moved
-	 * @return {Boolean} {@true it was moved}
+	 * @return {Boolean} {@true if it was moved}
 	 * @deprecated use {@link #insertBelow(item)} instead.
 	 */
 	moveBelow: '#insertBelow',
@@ -2124,7 +2124,7 @@ var Item = Base.extend(Callback, /** @lends Item# */{
 	* Removes the item from the project. If the item has children, they are also
 	* removed.
 	*
-	* @return {Boolean} {@true the item was removed}
+	* @return {Boolean} {@true if the item was removed}
 	*/
 	remove: function() {
 		return this._remove(true);
@@ -2215,7 +2215,7 @@ var Item = Base.extend(Callback, /** @lends Item# */{
 	/**
 	 * Checks whether the item is valid, i.e. it hasn't been removed.
 	 *
-	 * @return {Boolean} {@true the item is valid}
+	 * @return {Boolean} {@true if the item is valid}
 	 */
 	// TODO: isValid / checkValid
 

src/path/Curve.js

@@ -293,7 +293,7 @@ var Curve = Base.extend(/** @lends Curve# */{
 	 * Checks if this curve is linear, meaning it does not define any curve
 	 * handle.
 
-	 * @return {Boolean} {@true the curve is linear}
+	 * @return {Boolean} {@true if the curve is linear}
 	 */
 	isLinear: function() {
 		return this._segment1._handleOut.isZero()

src/style/Gradient.js

@@ -177,7 +177,7 @@ var Gradient = Base.extend(/** @lends Gradient# */{
 	 * Checks whether the gradient is equal to the supplied gradient.
 	 *
 	 * @param {Gradient} gradient
-	 * @return {Boolean} {@true they are equal}
+	 * @return {Boolean} {@true if they are equal}
 	 */
 	equals: function(gradient) {
 		if (gradient === this)