Added mandelbrot test case
Added PHP 5.6 opcodes
Fixed macro
Adjusted code fro PHP 5.6
Fixed #if conditions
Improved internal error checking
Make result of casting of constants constant
Merge branch 'experimental/Basia-A' of github.com:chung-leong/qb into experimental/Basia-A
Added flush()
Adjusted code for PHP 5.6
Added comment
Fixed thread termination
Fixed error reporting
Fixed function call inside fork
Fixed function inliner
Added landscape generator test case