Very partial commit; working on app template, also noerror support, async improvements
A plethora of cleanups for requireJS projects.  A few language fixes.
Still wip; tests fixed, source maps exporting, need to ensure webapp support more.
Working base64 encoded source maps.  Also fixes for node.
Better require support for SeriousJs modules; drop debug prints; arguments is a variable accessible in methods.
Support for super keyword and non-colon dict params.
On some machines, the slowTests are even slower
Change _requirejs to .requirejs to conform to linux file system semantics.
Rename nocheck to extern
README updates
For loops with range expressions.
Range expressions and array slices!  Start of deep dict unmapping...
Finished nested dict specs
Fixed repl, better dict unmapping support, guarded catch statements, a few others
Reassign new dict for undefined dict unmap back to right side.
Fixing using "this" in places where a member identifier is OK
Allowing catch statements to have no body.
Fix console for debug compiles and fix empty line processing for indentation detection.
Commas indicate a line continuation.
Minor fixes for template apps, small README updates.