Rewrite namespace handling code

Add a check for disallowed statements between braced namespaces
while at it.

Move Stmt\Namespace_::postprocess() to parser

Make sure that pretty printer preserves whitespace after <?php

Make names in the parser more descriptive

And improve the code a tad bit in general.

I left YY2TBLSTATES and YYNLSTATES around, because I don't fully
understand their role in th

Make names in the parser more descriptive

And improve the code a tad bit in general.

I left YY2TBLSTATES and YYNLSTATES around, because I don't fully
understand their role in the action double indexing.

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Use normal properties instead of static ones

Separate parser code from generated data

Add experimental php-parse script

Script supporting dumping, pretty printing, serializing and resolving
names. Intended to help exploring and debugging the node tree.

Update constant scalar expression support

Add note about prettyPrintFile() to docs

Merge branch '0.9'

Disable xdebug.scream while lexing

Make autoloader for new names PSR-0 compliant

Require file only if file exists

Allows usage of class_exists() on undefined classes.

Release PHP-Parser 1.0.0 Beta 1

Update changelog

Merge branch '0.9'

Conflicts:
lib/PhpParser/Template.php
lib/PhpParser/TemplateLoader.php

Deprecate templating functionality

Other projects cover this a lot better.

Added support for autoload $prepend

Improve pretty printing of empty statement lists

The pStmts() method now also includes the leading \n, however only
if the statement list is non-empty.

Minor cleanups to emulative lexer

Be consistent about version numbers. We'll only emulate until
beta1 of a release, as that's the feature freeze release.

Fix ** emulation wrt comments

Support use function/const in name resolver

Add support for function and constant import (PHP 5.6)

Add support for constant scalar expressions (PHP 5.6)

Add support for pow operator (PHP 5.6)