backspace is working (again?)
enable cursor forward
properly start Aesh UI plugin
Moved UIContextImpl specific methods to UIContextImpl
update aesh dependency to 0.45-SNAPSHOT
Revert "Moved UIContextImpl specific methods to UIContextImpl"

This reverts commit 1cb5ff2b29ebeacb6e14aeaabd38dfa1ea16b977.
implement save and restore cursor operations