add "namespaces support" =)
New features:
Introduced new function "runkit_default_property_remove" (Thanks to Juhan Kundla)
Ability to add non-scalar default properties was added

Critical fixes:
Crash on sandbox creation when register_globals is switched on was fixed
Building and working with PHP4 were fixed

Fixes:
Crash on syntax error in source file importing with runkit_import was fixed
Adding of non-lowercase default properties was fixed (removed lowercasing)
Merge pull request #19 from tony2001/master

skip the leading slash in class names (thanks to tony2001)
skip the leading slash in class names everywhere
tests were fixed
build without manipulation & sandbox was fixed
building on windows was fixed
new tests were added, old tests were improved
new tests were added to package.xml
Build system improvements:
Declarations after statement were restricted during compiling
Warnings now will be treated as errors
All tests now succeed under valgrind

New features:
PHP 5.4 is now fully supported

Fixes:
Copying of functions was reworked
Properties adding, removing and importing were corrected for right inheritance
Converting of input parameters (class names & function names) to lowecase was eliminated
Test for correctness of runkit.superglobals feature was added
Tests for correctness of inheritance of properties were added
Tests for correctness of adding static properties were added
Side affect of redefining, adding and removing class constant (Issue #25) was fixed, new tests were added
package.xml was fixed
runkit should be compiled without any warnings
compilation bug (gcc 4.3+) with definition of internal function was fixed
mad casing of classnames in different versions of PHP
a fix was added to package.xml
functions and methods redefining in PHP 5.4 was corrected in all places, new tests were added (#36, #32)
All ways of adding and removing magic methods and old-style constructors were reworked and corrected (issue #35).
Magic methods __isset, __unset, __callStatic, and __toString are now supported.
Functions runkit_class_adopt & runkit_class_emancipate now change class-hierarchy (issue #13).
tony2001's patch d63c984 was applied and reworked.
New tests were added.
The possible crash on manipulating constants having length less than two characters was eliminated.
Functions manipulating constants were corrected to work in PHP5.4, new tests were added.
Adding and redefining functions and methods, which return references, were fully implemented (#12).
New optional argument 'return_ref' of functions runkit_function_add and runkit_function_redefine was introduced.
New constant RUNKIT_ACC_RETURN_REFERENCE was introduced for use with functions runkit_method_add and runkit_method_redefine.
New tests were added.