Correct program name for scalajsp
Improve error messages of tools
Fix #563: Prevent Closure from eliminating finally
Fix #604: Add option to optimizer to not un-cache
Merge pull request #668 from gzm0/finally

Fix #563: Prevent Closure from eliminating finally
Merge pull request #669 from gzm0/no-uncache

Fix #604: Add option to optimizer to not un-cache
Add scalajsld (partial #559).
Merge pull request #667 from gzm0/cli-tools

Cli tools
Fix source maps yet again.
Fix #674: Unbox to Long does not convert null to 0L.
Simplify a bit unboxing functions.
Simplify isByte and isShort.
Remove the useless boxValue function on class data.
Review helpers for notify, notifyAll and finalize.
Use switches when doing multiple typeofs.
Remove useless calls to empty constructors in ArrayClass.
Give true (hard-coded) IR to java.lang.{Object,String}.

These were the 2 only classes in the universe that had to be
special-cased in various ways because they did not have true
IR, most notably in the optimizer. It would probably have gotten
worse in the inliner.

With this commit, the only hand-written JavaScript that we still
have is the corejsenv.js, for which it is reasonable, as it does
not take part in Scala.js-specific optimizations.
Merge pull request #672 from sjrd/fix-source-maps-again

Fix source maps yet again.
Merge pull request #675 from sjrd/cleanup-env

Cleanup scalajsenv.js
Merge pull request #673 from sjrd/object-and-string-as-ir

Give true (hard-coded) IR to java.lang.{Object,String}.