Move ecma262 dir to tests/
Add script to visualize AST
Merge pull request #63 from cesanta/dot

Add script to visualize AST
Merge pull request #62 from cesanta/ecma262

Move ecma262 dir to tests/
Parse unicode vars. More ecma tests.
Merge pull request #65 from cesanta/unicode_vars

Parse unicode vars. Parse all ecma tests.
Refactor and comment varlen functions