Removed old files and lines

And updated how input is read in and written out.

Since js doesn't use u64, webpack will convert to u32 in development mode.

Before @Unmanaged was commented out since the decorator wasn't defined.  This, however, made the compiler tests fail.  Now the transformer's webpack just defines an empty function for unmanaged and it passes all tests.

Also updated to use new runtime staging branch

…t#762)

This removes IDE errors when trying use the toString method on those primitive types.

…rs (AssemblyScript#766)

- Moved preamble to library file and made definitions global

Still need to fix up arg parsing.

…cript#779)

This also updates the new

Make u128 a special case

* Simplify tests

* Fix nullables issue

Added tests that string, u128, and Uint8Array are all nullable.

- fixed calling exported function with no arguments.

- Only entry files generate function wrappers
- Only functions with parameters or return a value generate a wrapper function.

So that the compiler tests entry files don't get instrumented.

Test if returned result is nullable before encoding it as null

preview version bump

Update hello contract to latest version

Update dependencies on master

Update package version for npm to 0.7.0

- simplified testing
- added test artifacts for future reference

Issue was that compiler wouldn't allow `Obj | Uint8array`  so to get around it added a type parameter that has a default.

Added dist files

Merge with Upstream and Simplify Decoding

-    Decreases binaries by ~50% by defining fewer classes
-    Handle Type Aliases
-    Fixes stub allocation
-    Loader much faster at accessing typed arrays
-    Fixes typing generation
-    Changed api to `obj.encode() -> Uint8Array`