Fixes bug 324
Merge pull request #5 from tony2001/master

Critical memory corruption fix. May lead to unpredictable behaviour in your PHP code: variable/constant disappearing et cetera.
0.8.11 notes
just version change (0.8.11)
Merge pull request #4 from poison/bug-324

Fixes bug 324
$_top and $_parent magic vars work properly in callbacks
* get_tokens function
* get_tokens test
Merge pull request #7 from dmitry-saprykin/blitz-get-tokens

Blitz get_tokens function
expression bugs fixed for string variables
FIX: thread-safe build fails
FIX: MSVC won't compile unless we stick to C89 or switch to C++ :(
Merge pull request #8 from narkq/windows-compat

Windows build fixes