Share all top-level decls when compiling language module
type arguments for Empty
don't use the *ProtoI functions anymore
Fix getT$name, getT$all; remove hand-written Correspondence
remove duplicates, compile Keys and Correspondence
Make the Stitcher usable from ceylon.language
Pass the new params to Stitcher
update tests for removed ContainerWithFirstElement
List of ceylon sources to compile to js is now in ceylon.language
remove version argument
Moved js source files over to ceylon.language
removed src/main/js
element and index use get() instead of item()
update tests for renaming of item() to get()