Improved parameter names.
Fixing comment - colorMatrixImage is applied to all channels.

Conflicts:
	imagick_class.c
Changed test to be slightly more reliable. It seems that the pseudo image created by 'magick:rose' can change between versions and so it doesn't always have the same size. The test now just checks that it has a size.
Removed unused variable.
Added version check for MagickStatisticImage.
Added version check for values.

Conflicts:
	imagick_helpers.c
Added version check.

Conflicts:
	imagick_class.c
Added more version checks for fourier transform functions, and corrected the comparison.

Conflicts:
	imagick.c
	php_imagick_defs.h
Cast size_t values to unsigned long so that printf knows the correct type.
Added latest version of Image Magick as version to test on Travis.
Add ALPHACHANNEL_BACKGROUND constant
Added version check for methods. Fixes #33

Conflicts:
	imagick_class.c
	php_imagick_defs.h
Missed some version check for #33
Added test that Imagick is actually loaded.
Added version check for color matrix image.