[Refactoring] - Some additional improvements before new development iteration.

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>
Merge branch 'master' of https://github.com/oleg-nenashev/jenkins-tcl-plugin

Conflicts:
	src/main/java/org/jenkinsci/plugins/tcl/interpreter/jTclTTY.java