changed erlang builder:
test binaries are no longer compiled for production target and no test artifacts are put in output directory;
disabled resources compiler for erlang modules (source files are no longer copied to output directory);
added erlang facet, facet editor ui;
changed erlang compiler and 'include' resolution so that they use facet to locate include directories;
changed rebar importer (it now creates erlang facets for imported modules), modified rebar importer tests accordingly;
changed erlang module builder (it now adds erlang facet on module creation);
cleanup