Too small rmax value will results in Terminal flashes too quick

Like tested top cmd on [Jenkins Remote Terminal Access Plugin]

Signed-off-by: Joey Jiao <joey.jiaojg@gmail.com>
Disable Paste option if browser not support

Signed-off-by: Joey Jiao <joey.jiaojg@gmail.com>
[maven-release-plugin] prepare release ajaxterm4j-1.4

Signed-off-by: Joey Jiao <joey.jiaojg@gmail.com>