Add --atscript option

Alias for:
  --types
  --annotations
  --memberVariables

Closes #1474
Accept *.ats extension if --atscript option set
Add text=auto to .gitattributes.
See http://git-scm.com/docs/gitattributes End-of-line conversion Note
Use .js for module names

Issue #1221
Support type assertions for es6 output

fix #1442
Move test-compat-table out of make test.

Remove the git url in the package.json and put it in the make rule.
The automatic test force network access on every make test and
added more dependencies than value we got from automatic testing.
(The current data file from compat-table fails in V8 due to
SyntaxError: Duplicate data property in object literal not allowed in strict mode

Review URL: https://api.github.com/repos/google/traceur-compiler/issues/1501

Closes #1501.
Report a clear error if the traceur runtime is missing when

For the case where generators.js runs without a runtime.js first.
Fixes #1504

Review URL: https://api.github.com/repos/google/traceur-compiler/issues/1505

Closes #1505, closes #1504.
Split System.register into .register() and .registerModule().

'instantiate' -> .register()
'register' -> .registerModule()
This allows the two formats to evolve independently.

Add `require` argument in prep for sending relativeRequire via function arguments.

Review URL: https://api.github.com/repos/google/traceur-compiler/issues/1500

Closes #1500.
Add parsing support for more type syntax

This adds support for

 * ArrayType
 * CallSignature
 * CosntructSignature
 * ConstructorType
 * FunctionType
 * IndexSignature
 * MethodSignature
 * ObjectType
 * PropertySignature
 * TypeParameter

The only remaining type syntax left from TS 1.0 is the TypeQuery type
expression. (Interfaces and declare as well).

This does not yet add runtime asserts for any of these.
Pass options object into scanner

This is tested by making sure that the options used by the
PlaceholderParser are propagated to the scanner.