Allow catch with no variable and adding finally.
More tests, working on async
Cleaning up variable allocations and a few stray conditions in light of async
Comment correction
Start work on REPL; allowing async keyword at body; assignments from async calls
Fixing bug in async where cached callback var overwrites another.
Ability to use async in tests, disallow try, and better parse tree errors for await
Fixed the compilation stack for async trees
Async for and if statements are working!
Basic while loop support
Fixing a language bug with incorrect parameter grouping
Async is implemented even if it's not 100% complete, so removing warning from readme
Added test for explicitly position callback
Async block and closure support
Closure support; async blocks are always closures.
Small refactor of create-app to support different templates.
Tuple assignment from async; out of place errors.
A lot of suspicious and shaky coding, but try..catch should work.  Needs cleanup and more tests.
Fixing args snafu.  Yay!
Added async_expr for one-liners