Deprecate version 10

Add AST node list to README

Mark version 30 as current

No point in keeping it experimental if people already rely on the
format...

Fix PHP 7.0 build

Support PHP 7.1 class constant visibility

a) CLASS_CONST_DECL now uses modifier flags. For PHP < 7.1 we
emuate MODIFIER_PUBLIC here for consistency.
b) CONST_ELEM can now have a d

Support PHP 7.1 class constant visibility

a) CLASS_CONST_DECL now uses modifier flags. For PHP < 7.1 we
emuate MODIFIER_PUBLIC here for consistency.
b) CONST_ELEM can now have a docComment properts (in analog to the
property on PROP_ELEM).

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Tweak stubs file

Add script to generate stubs

Move both gen scripts into common scripts/ folder.

Merge pull request #22 from zeroedin-bill/add-ast-stub

Add ast_stub.php

Add second parameter $version to parse_code()

The method `parse_code()` requires the second parameter `$version`,
but it is missing in some examples. The commit fixes this.

Add install instructions with Windows DLLs

Back to 0.1.2-dev

Release version 0.1.1 with OSX build fix

Avoid premature macro resolution / Fix OSX build

AST_STR(true) and AST_STR(false) were resolved to AST_STR(1) and
AST_STR(0), so go back to using a str_ prefix everywhere.

Back to 0.1.1-dev

Version 0.1.0

Mark version 20 as current

Rename some child names

add ast_stub.php

to provide phpdoc stub for use with IDEs

Add USE_* and MAGIC_* flag constants

This drops the effective dependency on tokenizer.

Also replace token numbers with %d as these are unstable.

Set version to 0.1.0-dev

Make $version argument required

[bc-break]

Move docComment to PROP_ELEM

Change some node names

Commit test files

Forgot to git add...

Update version changelog