fix #524 slider height issue

Slider height is 0 in some browsers

Close #536
fix #540 Setting the separate_jvm attribute on the robot applet tag

This solves the following issue which happens sometimes with
the java robot on IE 10:
"JVM Shared, not allowed to set security manager"
fix #541 Using $logWarn instead of $logError for onEmbeded* deprecation messages

Using $logWarn instead of $logError for onEmbeded* deprecation messages.
fix #543 better mouse position detect in Chrome

The framework stores the position of the last mouse event to prevent firing it multiple times in Chrome.
However in case of touch events this position might not be accurate.