write a Different of event.srcElement in eventForIE.js

Signed-off-by: arcticlion <david.malan@aol.com>
write a Usage of returnValue in eventForIE.js

Signed-off-by: arcticlion <david.malan@aol.com>
write a Usage of cancelBubble in eventForIE.js

Signed-off-by: arcticlion <david.malan@aol.com>
modify addHandler.js to EventUtil.js

Signed-off-by: arcticlion <david.malan@aol.com>
write a Method of getEvent in EventUtil.js

Signed-off-by: arcticlion <david.malan@aol.com>
write a Usage of getEvent() in EventUtil.js

Signed-off-by: arcticlion <david.malan@aol.com>
Modify EventUtil.js to eventUtil.js

Signed-off-by: arcticlion <david.malan@aol.com>
write a Method of getTarget() in eventUtil.js

Signed-off-by: arcticlion <david.malan@aol.com>
write a Usage of getTarget() in eventUtil.js

Signed-off-by: arcticlion <david.malan@aol.com>
write a Method of preventDefault() in eventUtil.js

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write a Usage of preventDefault() in eventUtil.js

Signed-off-by: arcticlion <david.malan@aol.com>
write a Method of stopPropagation() in eventUtil.js

Signed-off-by: arcticlion <david.malan@aol.com>
write a Usage of stopPropagation() in eventUtil.js

Signed-off-by: arcticlion <david.malan@aol.com>
Merge master and dev