small fix: remove warnings
add escript as erlang file extension
Improved Erlang console speed a bit.
1263 - value for ide runtime can be ignored
fix warning
Minor bugfix in backendshell
gh124 - add manual configuration of host names
Revert "template fixes"

This reverts commit 5c840765e4d83daacc63ab49b63d73f4b5e053e0.
restore fixes for templates, except the ones that affect variable expansion
Merge partial support for external builders (make, rebar, emake)