ffmpeg-php-0.3.8_alpha released

Minor bug fixes and better ebuild instructions.

New Features:
* Added getFrameIntoImage() function to reuse the same gd image for multiple calls for speed
(tkirby)

Bug Fixes:
* Fixed bug in getFrameResampled() argument parsing (tkirby)
* Fixed broken alias for getBitRate() function (tkirby)
* Fixed memory leak in gd image allocation function (tkirby)